Stephen Hawking (Physicist)

#31197 Stephen Hawking

Many people would claim that the boundary conditions are not part of physics but belong to metaphysics or religion. They would claim that nature had complete freedom to start the universe off any way it wanted. That may be so, but it could also have made it evolve in a completely arbitrary and random manner. Yet all the evidence is that it evolves in a regular way according to certain laws. .

Stephen Hawking Quotes about religion
#31198 Stephen Hawking

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. .

Stephen Hawking Quotes about time
#31199 Stephen Hawking

We need something new. We can't predict what that will be or when we will find it because if we knew that, we would have found it already! .

Stephen Hawking Quotes about will
#31200 Stephen Hawking

I regard [the ] as self-evidently correct. [T.F.: Yet some don't find it evident to themselves.] Yeah, well, there are some people who spend an awful lot of time talking about the interpretation of quantum mechanics. My attitude — I would paraphrase —is that when I hear of , I reach for my gun. .

Stephen Hawking Quotes about time
#31201 Stephen Hawking

Many people would claim that the boundary conditions are not part of physics but belong to metaphysics or religion. They would claim that nature had complete freedom to start the universe off any way it wanted. That may be so, but it could also have made it evolve in a completely arbitrary and random manner. Yet all the evidence is that it evolves in a regular way according to certain laws. It would therefore seem reasonable to suppose that there are also laws governing the boundary conditions. .

Stephen Hawking Quotes about religion
#31203 Stephen Hawking

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all. .

Stephen Hawking Quotes about understanding
#31204 Stephen Hawking

There ought to be something very special about the boundary conditions of the universe and what can be more special than that there is no boundary? .

Stephen Hawking Quotes about universe
#31205 Stephen Hawking

What I have done is to show that it is possible for the way the universe began to be determined by the laws of science. In that case, it would not be necessary to appeal to God to decide how the universe began. This doesn't prove that there is no God, only that God is not necessary. .

Stephen Hawking Quotes about science
#31206 Stephen Hawking

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. .

Stephen Hawking Quotes about age
#31207 Stephen Hawking

On seeing the Enterprise's warp engine while visiting the set of(where he would briefly play himself in the 1993 episode ), Hawking smiled and said: I'm working on that. .

Stephen Hawking Quotes about war
#31208 Stephen Hawking

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. .

Stephen Hawking Quotes about hope
#31209 Stephen Hawking

[discussing ] These lectures have shown very clearly the difference between Roger and me. He's a Platonist and I'm a positivist. He's worried thatis in a quantum state, where it is half alive and half dead. He feels that can't correspond to reality. But that doesn't bother me. I don't demand that a theory correspond to reality because I don't know what it is. Reality is not a quality you can test with litmus paper. All I'm concerned with is that the theory should predict the results of measurements. Quantum theory does this very successfully. It predicts that the result of an observation is either that the cat is alive or that it is dead. It is like you can't be slightly pregnant: you either are or you aren't. .

Stephen Hawking Quotes about success
#31210 Stephen Hawking

Sowas 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. .

Stephen Hawking Quotes about time
#31211 Stephen Hawking

The human race is just a chemical scum on a moderate-sized planet, orbiting around a very average star in the outer suburb of one among a hundred billion galaxies. We are so insignificant that I can't believe the whole universe exists for our benefit. That would be like saying that you would disappear if I closed my eyes. .

Stephen Hawking Quotes about man
#31212 Stephen Hawking

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. .

Stephen Hawking Quotes about life
#31213 Stephen Hawking

I don't believe that the ultimate theory will come by steady work along existing lines. We need something new. We can't predict what that will be or when we will find it because if we knew that, we would have found it already! It could come in the next 20 years, but we might never find it. .

Stephen Hawking Quotes about work
#31214 Stephen Hawking

It is not clear that intelligence has any long-term survival value. .

Stephen Hawking Quotes about intelligence
#31215 Stephen Hawking

Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do. .

Stephen Hawking Quotes about man
#31216 Stephen Hawking

All my life, I have been fascinated by the big questions that face us, and have tried to find scientific answers to them. .

Stephen Hawking Quotes about life
#31217 Stephen Hawking

The world has changed far more in the past 100 years than in any other century in history. The reason is not political or economic but technological — technologies that flowed directly from advances in basic science. .

Stephen Hawking Quotes about science
#31218 Stephen Hawking

One might think this means that imaginary numbers are just a mathematical game having nothing to do with the real world. From the viewpoint of positivist philosophy, however, one cannot determine what is real. All one can do is find which mathematical models describe the universe we live in. It turns out that a mathematical model involving imaginary time predicts not only effects we have already observed but also effects we have not been able to measure yet nevertheless believe in for other reasons. So what is real and what is imaginary? Is the distinction just in our minds? .

Stephen Hawking Quotes about philosophy
#31220 Stephen Hawking

I don't think the human race will survive the next thousand years, unless we spread into space... .

Stephen Hawking Quotes about man
#31221 Stephen Hawking

I don't think the human race will survive the next thousand years, unless we spread into space. There are too many accidents that can befall life on a single planet. But I'm an optimist. We will reach out to the stars. .

Stephen Hawking Quotes about life
#31222 Stephen Hawking

We shouldn't be surprised that conditions in the universe are suitable for life, but this is not evidence that the universe was designed to allow for life. We could call order by the name of God, but it would be an impersonal God. There's not much personal about the laws of physics. .

Stephen Hawking Quotes about life
#31223 Stephen Hawking

[on the possibility of contact with an alien civilization] I think it would be a disaster. The extraterrestrials would probably be far in advance of us. The history of advanced races meeting more primitive people on this planet is not very happy, and they were the same species. I think we should keep our heads low. .

Stephen Hawking Quotes about history
#31224 Stephen Hawking

The life we have on Earth must have spontaneously generated itself. It must therefore be possible for life to generate spontaneously elsewhere in the universe. .

Stephen Hawking Quotes about life
#31225 Stephen Hawking

I'm sorry to disappoint science fiction fans, but if information is preserved, there is no possibility of using black holes to travel to other universes. If you jump into a black hole, your mass energy will be returned to our universe but in a mangled form which contains the information about what you were like but in a state where it can not be easily recognized. .

Stephen Hawking Quotes about science
#31226 Stephen Hawking

I'm sorry to disappoint science fiction fans, but if information is preserved, there is no possibility of using black holes to travel to other universes. If you jump into a black hole, your mass energy will be returned to our universe but in a mangled form which contains the information about what you were like but in a state where it can not be easily recognized. It is like burning an encyclopedia. Information is not lost, if one keeps the smoke and the ashes. But it is difficult to read. In practice, it would be too difficult to re-build a macroscopic object like an encyclopedia that fell inside a black hole from information in the radiation, but the information preserving result is important for microscopic processes involving virtual black holes. .

Stephen Hawking Quotes about science
#31227 Stephen Hawking

is the only figure in the physical sciences with a stature that can be compared with . Newton is reported to have said "If I have seen further than other men, it is because I stood on the shoulders of giants." This remark is even more true of Einstein who stood on the shoulders of Newton. Both Newton and Einstein put forward a theory ofand a theory ofbut Einstein was able to baseon thethat had been constructed bywhile Newton had to developIt is therefore appropriate to acclaim Newton as the greatest figure inand theis his greatest achievement. .

Stephen Hawking Quotes about science
#31228 Stephen Hawking

I have no idea. People who boast about their IQ are losers. .

Stephen Hawking Quotes about idea
#31229 Stephen Hawking

Life would be tragic if it weren't funny. .

Stephen Hawking Quotes about funny
#31230 Stephen Hawking

I am discounting reports of UFOs. Why would they appear only to cranks and weirdos? .

Stephen Hawking Quotes about weird
#31231 Stephen Hawking

My expectations were reduced to zero when I was 21. Everything since then has been a bonus. .

Stephen Hawking Quotes about sin
#31232 Stephen Hawking

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. .

Stephen Hawking Quotes about men
#31233 Stephen Hawking

I think that it's important for scientists to explain their work, particularly in cosmology. This now answers many questions once asked of religion. .

Stephen Hawking Quotes about religion
#31234 Stephen Hawking

It is a waste of time to be angry about my disability. One has to get on with life and I haven't done badly. People won't have time for you if you are always angry or complaining. .

Stephen Hawking Quotes about life
#31235 Stephen Hawking

Equations are just the boring part of mathematics. I attempt to see things in terms of geometry. .

Stephen Hawking Quotes about art
#31237 Stephen Hawking

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. .

Stephen Hawking Quotes about life
#31238 Stephen Hawking

The danger is that global warming may become self-sustaining, if it has not done so already. The melting of the Arctic and Antarctic ice caps reduces the fraction of solar energy reflected back into space, and so increases the temperature further. Climate change may kill off the Amazon and other rain forests, and so eliminate once one of the main ways in which carbon dioxide is removed from the atmosphere. The rise in sea temperature may trigger the release of large quantities of carbon dioxide, trapped as hydrides on the ocean floor. Both these phenomena would increase the greenhouse effect, and so global warming further. We have to reverse global warming urgently, if we still can. .

Stephen Hawking Quotes about war
#31239 Stephen Hawking

As scientists, we understand the dangers of nuclear weapons and their devastating effects, and we are learning how human activities and technologies are affecting climate systems in ways that may forever change life on Earth. As citizens of the world, we have a duty to alert the public to the unnecessary risks that we live with every day, and to the perils we foresee if governments and societies do not take action now to render nuclear weapons obsolete and to prevent further climate change... There’s a realization that we are changing our climate for the worse. That would have catastrophic effects. Although the threat is not as dire as that of nuclear weapons right now, in the long term we are looking at a serious threat. .

Stephen Hawking Quotes about life
#31240 Stephen Hawking

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. .

Stephen Hawking Quotes about world
#31241 Stephen Hawking

I'm not religious in the normal sense. I believe the universe is governed by the laws of science. The laws may have been decreed by God, but God does not intervene to break the laws. .

Stephen Hawking Quotes about science
#31242 Stephen Hawking

The zero-G part was wonderful and the higher-G part was no problem. I could have gone on and on. Space, here I come! .

Stephen Hawking Quotes about art
#31243 Stephen Hawking

In a world that is in chaos politically, socially and environmentally, how can the human race sustain another 100 years? .

Stephen Hawking Quotes about men
#31244 Stephen Hawking

To confine our attention to terrestrial matters would be to limit the human spirit. .

Stephen Hawking Quotes about man
#31245 Stephen Hawking

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. .

Stephen Hawking Quotes about religion
#31246 Stephen Hawking

I used to think that information was destroyed in black holes. But theled me to change my mind. This was my biggest blunder, or at least my biggest blunder in science. .

Stephen Hawking Quotes about science
#31247 Stephen Hawking

[Asked what he thinks about most during the day] Women. They are a complete mystery. .

Stephen Hawking Quotes about men
#31248 Stephen Hawking

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. .

Stephen Hawking Quotes about science
#31249 Stephen Hawking

Someone told me that each equation I included in the book would halve the sales. I therefore resolved not to have any equations at all. In the end, however, I did put in one equation, 's famous equation, . I hope that this will not scare off half of my potential readers. .

Stephen Hawking Quotes about hope

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