Stephen Hawking was an English theoretical physicist, cosmologist, and author who was born on January 8, 1942, in Oxford, England. His work has had a profound impact on our understanding of gravity, space-time, black holes, and the Big Bang. He was a true inspiration to us all, and his legacy will live on for many years to come.
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| However difficult life may seem, there is always something you can do and succeed at. ― Stephen Hawking |
He was also a gifted communicator, and his books and public appearances inspired millions of people around the world. His quotes are often profound, thought-provoking, and inspiring.
Here is a collection of Stephen Hawking most famous quotes: Stephen Hawking quotes about knowledge, humanity, life and love. Quotes and sayings on science, success, time, education, space and the universe by Stephen Hawking.
Stephen Hawking Quotes and Sayings
Quiet people have the loudest minds.
Success in creating AI would be the biggest event in human history. Unfortunately, it might also be the last, unless we learn how to avoid the risks.
Intelligence is the ability to adapt to change.
We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.
However difficult life may seem, there is always something you can do and succeed at.
Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.
Life would be tragic if it weren't funny.
Work gives you meaning and purpose and life is empty without it.
My expectations were reduced to zero when I was 21. Everything since then has been a bonus.
I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to appear on planet Earth.
I have noticed that even those who assert that everything is predestined and that we can change nothing about it still look both ways before they cross the street.
I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.
The victim should have the right to end his life, if he wants. But I think it would be a great mistake. However bad life may seem, there is always something you can do, and succeed at. While there's life, there is hope.
It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose, our final destination. Its a crazy world out there. Be curious.
With genetic engineering, we will be able to increase the complexity of our DNA, and improve the human race. But it will be a slow process, because one will have to wait about 18 years to see the effect of changes to the genetic code.
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| Intelligence is the ability to adapt to change. ― Stephen Hawking |
Primitive life is very common and intelligent life is fairly rare. Some would say it has yet to occur on Earth.
I believe the simplest explanation is, there is no God. No one created the universe and no one directs our fate. This leads me to a profound realization that there probably is no heaven and no afterlife either. We have this one life to appreciate the grand design of the universe and for that, I am extremely grateful.
There could be shadow galaxies, shadow stars, and even shadow people.
I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image.
One of the basic rules of the universe is that nothing is perfect. Perfection simply doesn't exist. Without imperfection, neither you nor I would exist.
Someone told me that each equation I included in the book would halve the sales.
My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.
The universe doesn't allow perfection.
I believe things cannot make themselves impossible.
If time travel is possible, where are the tourists from the future?
There is a fundamental difference between religion, which is based on authority, and science, which is based on observation and reason. Science will win because it works.
Scientists have become the bearers of the torch of discovery in our quest for knowledge.
The thing about smart people is that they seem like crazy people to dumb people.
Although I cannot move and I have to speak through a computer, in my mind I am free.
Science is beautiful when it makes simple explanations of phenomena or connections between different observations. Examples include the double helix in biology and the fundamental equations of physics.
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| Quiet people have the loudest minds. ― Stephen Hawking |
I'm not afraid of death, but I'm in no hurry to die.
People who boast about their IQ are losers.
Nothing cannot exist forever.
I don't think the human race will survive the next thousand years, unless we spread into space.
The downside of my celebrity is that I cannot go anywhere in the world without being recognized. It is not enough for me to wear dark sunglasses and a wig. The wheelchair gives me away.
My advice to other disabled people would be, concentrate on things your disability doesn't prevent you doing well, and don't regret the things it interferes with. Don't be disabled in spirit as well as physically.
Ever since the dawn of civilization, people have not been content to see events as unconnected and inexplicable. They have craved an understanding of the underlying order in the world. Today we still yearn to know why we are here and where we came from. Humanity's deepest desire for knowledge is justification enough for our continuing quest. And our goal is nothing less than a complete description of the universe we live in.
Not only does God play dice, but.... he sometimes throws them where they cannot be seen.
Life on Earth is at the ever-increasing risk of being wiped out by a disaster, such as sudden global nuclear war, a genetically engineered virus or other dangers we have not yet thought of.
Nothing is better than reading and gaining more and more knowledge.
So Einstein was wrong when he said, 'God does not play dice.' Consideration of black holes suggests, not only that God does play dice, but that he sometimes confuses us by throwing them where they can't be seen.
We are the product of quantum fluctuations in the very early universe.
It matters if you just don't give up.
So long as the universe had a beginning, we could suppose it had a creator. But if the universe is really completely self-contained, having no boundary or edge, it would have neither beginning nor end: it would simply be. What place, then, for a creator?
Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.
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| Work gives you meaning and purpose and life is empty without it. ― Stephen Hawking |
To confine our attention to terrestrial matters would be to limit the human spirit.
However bad life may seem, there is always something you can do and succeed at. Where there's life, there's hope.
In my opinion, there is no aspect of reality beyond the reach of the human mind.
If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn't turn out very well for the Native Americans.
We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.
No one undertakes research in physics with the intention of winning a prize. It is the joy of discovering something no one knew before.
If there really is a complete unified theory that governs everything, it presumably also determines your actions. But it does so in a way that is impossible to calculate for an organism that is as complicated as a human being. The reason we say that humans have free will is because we can't predict what they will do.
The idea of 10 dimensions might sound exciting, but they would cause real problems if you forget where you parked your car.
The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years.
I like physics, but I love cartoons.
The human capacity for guilt is such that people can always find ways to blame themselves.
If I had a time machine, I'd visit Marilyn Monroe in her prime or drop in on Galileo as he turned his telescope to the heavens.
The increase of disorder or entropy is what distinguishes the past from the future, giving a direction to time.
Only time - whatever that may be - will tell.
I was not a good student. I did not spend much time at college; I was too busy enjoying myself.
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| Success in creating AI would be the biggest event in human history. Unfortunately, it might also be the last, unless we learn how to avoid the risks. ― Stephen Hawking |
Time and space are finite in extent, but they don't have any boundary or edge. They would be like the surface of the earth, but with two more dimensions.
I'm not afraid of death, but I'm in no hurry to die. I have so much I want to do first.
I think the brain is essentially a computer and consciousness is like a computer program. It will cease to run when the computer is turned off. Theoretically, it could be re-created on a neural network, but that would be very difficult, as it would require all one's memories.
It is not clear that intelligence has any long-term survival value.
Be brave, be curious, be determined, overcome the odds. It can be done.
The universe is not indifferent to our existence - it depends on it.
We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and overcrowded planet.
One is always a long way from solving a problem until one actually has the answer.
We are all now connected by the Internet, like neurons in a giant brain.
Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory.
Government works best under the glare of public scrutiny. Absent such scrutiny, abuses occur.
The past, like the future, is indefinite and exists only as a spectrum of possibilities.
If the government is covering up knowledge of aliens, they are doing a better job of it than they do at anything else.
When we see the Earth from space, we see ourselves as a whole. We see the unity, and not the divisions. It is such a simple image with a compelling message; one planet, one human race.
When one's expectations are reduced to zero, one really appreciates everything one does have.
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| Science is not only a disciple of reason but, also, one of romance and passion. ― Stephen Hawking |
Simplicity is a matter of taste.
The human race does not have a very good record of intelligent behaviour.
While physics and mathematics may tell us how the universe began, they are not much use in predicting human behavior because there are far too many equations to solve. I'm no better than anyone else at understanding what makes people tick, particularly women.
I wouldn't be here today if it were not for the NHS. I have received a large amount of high-quality treatment without which I would not have survived.
You cannot predict the future.
In less than a hundred years, we have found a new way to think of ourselves. From sitting at the center of the universe, we now find ourselves orbiting an average-sized sun, which is just one of millions of stars in our own Milky Way galaxy.
I am just a child who has never grown up. I still keep asking these 'how' and 'why' questions. Occasionally, I find an answer.
One can't predict the weather more than a few days in advance.
Mankind's greatest achievements have come about by talking and its greatest failures by not talking. It doesn't have to be like this.
I enjoy all forms of music - pop, classical and opera.
No matter how powerful a computer you have, if you put lousy data in you will get lousy predictions out.
Because there is a law such as gravity, the universe can and will create itself from nothing.
It's the gravity that shapes the large scale structure of the universe, even though it is the weakest of four categories of forces.
The missing link in cosmology is the nature of dark matter and dark energy.
If one is physically disabled, one cannot afford to be psychologically disabled as well.
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| Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious. ― Stephen Hawking |
Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe? The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?
I can't disguise myself with a wig and dark glasses - the wheelchair gives me away.
One, remember to look up at the stars and not down at your feet. Two, never give up work. Work gives you meaning and purpose and life is empty without it. Three, if you are lucky enough to find love, remember it is there and don't throw it away.
There could be whole antiworlds and antipeople made out of antiparticles. However, if you meet your antiself, don't shake hands! You would both vanish in a great flash of light.
I think we have a good chance of surviving long enough to colonize the solar system.
I regard the brain as a computer which will stop working when its components fail. There is no heaven or afterlife for broken down computers; that is a fairy story for people afraid of the dark.
I believe there are no questions that science can't answer about a physical universe.
We find ourselves in a bewildering world. We want to make sense of what we see around us and to ask: What is the nature of the universe? What is our place in it and where did it and we come from? Why is it the way it is?
I have so much that I want to do. I hate wasting time.
We each exist for but a short time, and in that time explore but a small part of the whole universe.
Before 1915, space and time were thought of as a fixed arena in which events took place, but which was not affected by what happened in it. Space and time are now dynamic quantities... space and time not only affect but are also affected by everything that happens in the universe.
Today will still yearn to know why we are here and where we came from. Humanity's deepest desire for knowledge is justification enough for our continuing quest. And our goal is nothing less than a complete description of the universe we live in.
Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor.
People won't have time for you if you are always angry or complaining.
Why are we here? Where do we come from? Traditionally, these are questions for philosophy, but philosophy is dead.
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| The thing about smart people is that they seem like crazy people to dumb people. ― Stephen Hawking |
The eventual goal of science is to provide a single theory that describes the whole universe.
Most sets of values would give rise to universes that, although they might be very beautiful, would contain no one able to wonder at that beauty.
Before I lost my voice, it was slurred, so only those close to me could understand, but with the computer voice, I found I could give popular lectures. I enjoy communicating science. It is important that the public understands basic science, if they are not to leave vital decisions to others.
Some scientists think it may be possible to capture a wormhole and enlarge it many trillions of times to make it big enough for a human or even a spaceship to enter.
My ideal role would be a baddie in a James Bond film. I think the wheelchair and the computer voice would fit the part.
The fastest manned vehicle in history was Apollo 10. It reached 25,000 mph.
We create history by our observation, rather than history creating us.
I don't want to write an autobiography because I would become public property with no privacy left.
The people who actually make the advances in theoretical physics don't think in these categories that the philosophers and the historians of science subsequently invent for them.
Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill.
Why does disorder increase in the same direction of time as that in which the Universe expands?
If the rate of expansion one second after the Big Bang had been smaller by even one part in a hundred thousand million million, it would have recollapsed before it reached its present size. On the other hand, if it had been greater by a part in a million, the universe would have expanded too rapidly for stars and planets to form.
Stem cell research is the key to developing cures for degenerative conditions like Parkinson's and motor neuron disease from which I and many others suffer. The fact that the cells may come from embryos is not an objection, because the embryos are going to die anyway.
I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.
If I had to choose a superhero to be, I would pick Superman. He's everything that I'm not.
Why are we so worried about artificial intelligence? Surely humans are always able to pull the plug? People asked a computer, 'Is there a God?' And the computer said, 'There is now,' and fused the plug.
There is nothing bigger or older than the universe.
There should be no boundaries to human endeavor. We are all different. However bad life may seem, there is always something you can do, and succeed at. While there's life, there is hope.
I was born on January 8, 1942, exactly three hundred years after the death of Galileo. I estimate, however, that about two hundred thousand other babies were also born that day. I don't know whether any of them was later interested in astronomy.
The universe does not behave according to our pre-conceived ideas. It continues to surprise us.
It's time to commit to finding the answer, to search for life beyond Earth. Mankind has a deep need to explore, to learn, to know. We also happen to be sociable creatures. It is important for us to know if we are alone in the dark.
Women. They are a complete mystery to me.
I was never top of the class at school, but my classmates must have seen potential in me, because my nickname was 'Einstein.'
The whole history of science has been the gradual realization that events do not happen in an arbitrary manner, but that they reflect a certain underlying order, which may or may not be divinely inspired.
It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years.
What you have told us is rubbish. The world is really a flat plate supported on the back of a giant tortoise.
The voice I use is a very old hardware speech synthesizer made in 1986. I keep it because I have not heard a voice I like better and because I have identified with it.
I have spent my life travelling across the universe, inside my mind.
I don't have much positive to say about motor neuron disease, but it taught me not to pity myself because others were worse off, and to get on with what I still could do. I'm happier now than before I developed the condition.
Disorder increases with time because we measure time in the direction in which disorder increases.
It is generally recognised that women are better than men at languages, personal relations and multi-tasking, but less good at map-reading and spatial awareness. It is therefore not unreasonable to suppose that women might be less good at mathematics and physics.
I have sold more books on physics than Madonna has on sex.
There are no black holes in the sense of regimes from which light can't escape to infinity.
The discovery that the Universe is expanding was one of the great intellectual revolutions of the 20th century.
Some people would claim that things like love, joy and beauty belong to a different category from science and can't be described in scientific terms, but I think they can now be explained by the theory of evolution.
I had no desire to share the fate of Galileo, with whom I feel a strong sense of identity, partly because of the coincidence of having been born exactly 300 years after his death!
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
Black holes ain't so black after all.
The only thing that makes time travel possible is if the universe is finite. If the universe is infinite, then time travel is impossible.
We are all connected. We are all part of the same universe. We are all brothers and sisters.
We must not give up hope. We must continue to explore the universe and learn as much as we can.
In my school, the brightest boys did math and physics, the less bright did physics and chemistry, and the least bright did biology. I wanted to do math and physics, but my father made me do chemistry because he thought there would be no jobs for mathematicians.
Although quantum mechanics has been around for nearly 70 years, it is still not generally understood or appreciated, even by those that use it to do calculations.
Observations indicate that the universe is expanding at an ever increasing rate. It will expand forever, getting emptier and darker.
One cannot really argue with a mathematical theorem.
Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.
It is hard to imagine how free will can operate if our behavior is determined by physical law, so it seems that we are no more than biological machines and that free will is just an illusion.
We should seek the greatest value of our action.
There is no way that we can predict the weather six months ahead beyond giving the seasonal average.
I first had the idea of writing a popular book about the universe in 1982. My intention was partly to earn money to pay my daughter's school fees.
The most remarkable property of the universe is that it has spawned creatures able to ask questions.
The radiation left over from the Big Bang is the same as that in your microwave oven but very much less powerful. It would heat your pizza only to minus 271.3*C - not much good for defrosting the pizza, let alone cooking it.
I am very aware of the preciousness of time. Seize the moment. Act now.
Obviously, because of my disability, I need assistance. But I have always tried to overcome the limitations of my condition and lead as full a life as possible. I have traveled the world, from the Antarctic to zero gravity.
Each exists for but a short time, and in that time explore but a small part of the whole universe.
The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?
It is said that there's no such thing as a free lunch. But the universe is the ultimate free lunch.
Theoretical physics is one of the few fields in which being disabled is no handicap - it is all in the mind.
Sometimes I wonder if I'm as famous for my wheelchair and disabilities as I am for my discoveries.
Black holes are not really black after all: they glow like a hot body, and the smaller they are, the more they glow.
If a star were a grain of salt, you could fit all the stars visible to the naked eye on a teaspoon, but all the stars in the universe would fill a ball more than eight miles wide.
My father was a research scientist in tropical medicine, so I always assumed I would be a scientist, too. I felt that medicine was too vague and inexact, so I chose physics.
If you believe in science, like I do, you believe that there are certain laws that are always obeyed.
Another prediction of general relativity is that time should appear to run slower near a massive body like the earth.
Some forms of motor neuron disease are genetically linked, but I have no indication that my kind is. No other member of my family has had it. But I would be in favour of abortion if there was a high risk.
We are very very small. But we are profoundly capable of very very big things.
We think we have solved the mystery of creation. Maybe we should patent the universe and charge everyone royalties for their existence.
I had a bet with Gordon Kane of Michigan University that the Higgs particle wouldn't be found.
A scientific law is not a scientific law, if it holds only when some supernatural being decides not to intervene.
Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?
A few years ago, the city council of Monza, Italy, barred pet owners from keeping goldfish in curved bowls... saying that it is cruel to keep a fish in a bowl with curved sides because, gazing out, the fish would have a distorted view of reality. But how do we know we have the true, undistorted picture of reality?
There is a real danger that computers will develop intelligence and take over. We urgently need to develop direct connections to the brain so that computers can add to human intelligence rather than be in opposition.
This means it will take about a thousand million million million million years for the earth to run into the sun, so there's no immediate cause for worry!
There are too many accidents that can befall life on a single planet.
In an infinite universe, every point can be regarded as the center, because every point has an infinite number of stars on each side of it.
You can't regulate every lab in the world.
The universe is governed by science. But science tells us that we can't solve the equations, directly in the abstract.
If you understand how the universe operates, you control it, in a way.
The computer in your cell phone today is a million times cheaper and a thousand times more powerful and about a hundred thousand time smaller than the one computer at MIT in 1965.
There is no unique picture of reality.
I want to know why the universe exists, why there is something greater than nothing.
Maybe I don't have the most common kind of motor neuron disease, which usually kills in two or three years.
Evolution has ensured that our brains just aren't equipped to visualise 11 dimensions directly. However, from a purely mathematical point of view it's just as easy to think in 11 dimensions, as it is to think in three or four.
Among physicists, I'm respected I hope.
In the past, there was active discrimination against women in science. That has now gone, and although there are residual effects, these are not enough to account for the small numbers of women, particularly in mathematics and physics.
All my adult life people have been helping me.
When you're faced with the possibility of an early death, it makes you realize that life is worth living and there are a lots of things you want to do.
An expanding universe does not preclude a creator, but it does place limits on when he might have carried out his job!
We are all different. There is no such thing as a standard or run-of-the-mill human being, but we share the same human spirit.
For millions of years, mankind lived just like the animals. Then something happened which unleashed the power of our imagination. We learned to talk and we learned to listen. Speech has allowed the communication of ideas, enabling human beings to work together to build the impossible. Mankind's greatest achievements have come about by talking, and its greatest failures by not talking. It doesn't have to be like this. Our greatest hopes could become reality in the future. With the technology at our disposal, the possibilities are unbounded. All we need to do is make sure we keep talking.
Earth might one day soon resemble the planet Venus.
'The Simpsons' appearances were great fun. But I don't take them too seriously. I think 'The Simpsons' have treated my disability responsibly.
There's no way to remove the observer - us - from our perceptions of the world.
I think the human race doesn't have a future if we don't go into space. We need to expand our horizons beyond planet Earth if we are to have a long-term future.
I think the discovery of supersymmetric partners for the known particles would revolutionize our understanding of the universe.
Our minds work in real time, which begins at the Big Bang and will end, if there is a Big Crunch - which seems unlikely, now, from the latest data showing accelerating expansion. Consciousness would come to an end at a singularity.
Remember to look up at the stars and not down at your feet. Try to make sense of what you see and wonder about what makes the universe exist. Be curious. And however difficult life may seem, there is always something you can do and succeed at. It matters that you don't just give up.
To my mathematical brain, the numbers alone make thinking about aliens perfectly rational. The real challenge is to work out what aliens might actually be like.
Today, we commit to this next great leap into the cosmos because we're human, and our nature is to fly.
We must develop as quickly as possible technologies that make possible a direct connection between brain and computer, so that artificial brains contribute to human intelligence rather than opposing it.
Although almost every theoretical physicist agrees with my prediction that a black hole should glow like a hot body, it would be very difficult to verify experimentally because the temperature of a macroscopic black hole is so low.
The whole history of science has been the gradual realization that events do not happen in an arbitrary manner, but that they reflect a certain underlying order, which may or may not be divinely inspired.
Throughout history, people have studied pure science from a desire to understand the universe rather than practical applications for commercial gain. But their discoveries later turned out to have great practical benefits.
Science is increasingly answering questions that used to be the province of religion.
Even if it turns out that time travel is impossible, it is important that we understand why it is impossible.
Most people don't have time to master the very mathematical details of theoretical physics.
There could be whole antiworlds and antipeople made out of antiparticles. However, if you meet your antiself, don't shake hands!
Science is not only a disciple of reason but, also, one of romance and passion.
I believe everyone should have a broad picture of how the universe operates and our place in it. It is a basic human desire. And it also puts our worries in perspective.
I believe in universal health care. And I am not afraid to say so.
When we understand string theory, we will know how the universe began. It won't have much effect on how we live, but it is important to understand where we come from and what we can expect to find as we explore.
The media need superheroes in science just as in every sphere of life, but there is really a continuous range of abilities with no clear dividing line.
Science predicts that many different kinds of universe will be spontaneously created out of nothing. It is a matter of chance which we are in.
In Britain, like most of the developed world, stem-cell research is regarded as a great opportunity. America will be left behind if it doesn't change policy.
My work and my family are very important to me.
In space no one can hear you scream; and in a black hole, no one can see you disappear.
There should be no boundary to human endeavor.
Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.'
Black holes might be useful for getting rid of garbage or even some of one's friends.
One has a singularity contained within a region of space-time known as a black hole.
My first popular book, 'A Brief History of Time,' aroused a great deal of interest, but many found it difficult to understand.
No one can resist the idea of a crippled genius.
Cosmology is a rapidly advancing field.
I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science.
There is no physical law precluding particles from being organised in ways that perform even more advanced computations than the arrangements of particles in human brains.
The Paralympic Games is about transforming our perception of the world.
There are grounds for cautious optimism that we may now be near the end of the search for the ultimate laws of nature.
The Greeks even had a third argument that the earth must be round, for why else does one first see the sails of a ship coming over the horizon, and only later see the hull?
Humanity's deepest desire for knowledge is justification enough for our continuing quest. And our goal is nothing less than a complete description of the universe we live in.
The Planck satellite may detect the imprint of the gravitational waves predicted by inflation. This would be quantum gravity written across the sky.
I hope I have helped to raise the profile of science and to show that physics is not a mystery but can be understood by ordinary people.
The cyclic universe theory predicts no gravitational waves from the early universe.
According to 'M' theory, ours is not the only universe. Instead, 'M' theory predicts that a great many universes were created out of nothing.
It's a pity that nobody has found an exploding black hole. If they had, I would have won a Nobel prize.
A zero-gravity flight is a first step toward space travel.
Many badly needed goals, like fusion and cancer cure, would be achieved much sooner if we invested more.
Science can lift people out of poverty and cure disease. That, in turn, will reduce civil unrest.
As we shall see, the concept of time has no meaning before the beginning of the universe.
It would not be much of a universe if it wasn't home to the people you love.
I can't say that my disability has helped my work, but it has allowed me to concentrate on research without having to lecture or sit on boring committees.