The development of full artificial intelligence could spell the end of the human race.
I don't think the human race will survive the next thousand years, unless we spread into space.
Disability need not be an obstacle to success.
A society in which the individual feels responsible for his or her actions is more likely to work together and survive to spread its values.
Disability can be no handicap.
To my mathematical brain, the numbers alone make thinking about aliens perfectly rational.
Using e-mail, I can communicate with scientists all over the world.
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.
Though we feel that we can choose what we do, our understanding of the molecular basis of biology shows that biological processes are governed by the laws of physics and chemistry and therefore are as determined as the orbits of the planets. Recent experiments in neuroscience support the view that it is our physical brain, following the known laws of science, that determines our actions, and not some agency that exists outside those laws. For example, a study of patients undergoing awake brain surgery found that by electrically stimulating the appropriate regions of the brain, one could create in the patient the desire to move the hand, arm, or foot, or to move the lips and talk. 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.
Nothing is fool-proof to a sufficiently talented fool.
We live in a bewildering world.
The beatings will continue until morale improves.
We should seek the greatest value of our action.
You cannot understand the glories of the universe without believing there is some Supreme Power behind it.
Theoretical physics is one of the few fields in which being disabled is no handicap -- it is all in the mind.
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.
One could imagine such technology outsmarting financial markets, out-inventing human researchers, out-manipulating human leaders, and developing weapons we cannot even understand.
Look up at the stars, not down at your feet.
There are grounds for cautious optimism that we may now be near the end ofthe search for the ultimate laws of nature.
Cambridge is one of the best universities in the world, especially in my field.
I believe things cannot make themselves impossible.
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. By contrast, computers double their speed and memories every 18 months. 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.
Not only that God does play dice, but that He sometimes confuses us by throwing them where they can't be seen.
I can't disguise myself with a wig and dark glasses -- the wheelchair gives me away.
There is no way that we can predict the weather six months ahead beyond giving the seasonal average.
So great a contribution to physics was Two New Sciences that scholars have long maintained that the book anticipated Isaac Newton's laws of motion.
Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.
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.
Chaos, when left alone, tends to multiply.
Government works best under the glare of public scrutiny. Absent such scrutiny, abuses occur.
Real science can be far stranger than science fiction and much more satisfying.
When you are faced with the possibility of an early death, it makes you realize that life is worth living and that there are lots of things you want to do.
A picture is worth a thousand words...and uses up a thousand times the memory.
Quantum physics tells us that no matter how thorough our observation of the present, the (unobserved) past, like the future, is indefinite and exists only as a spectrum of possibilities.
Quantum physics tells us that no matter how thorough our observation of the present, the (unobserved) past, like the future, is indefinite and exists only as a spectrum of possibilities.
The universe, according to quantum physics, has no single past, or history. The fact that the past takes no definite form means that observations you make on a system in the present affect its past.
Mankind's greatest achievements have come about by talking and its greatest failures by not talking. It doesn't have to be like this.
There are no black holes -- in the sense of regimes from which light can't escape to infinity. There are however apparent horizons which persist for a period of time.
I don't care much for equations myself. This is partly because it is difficult for me to write them down, but mainly because I don't have an intuitive feeling for equations.
There should be no boundaries to human endeavor. However bad life may seem, there is always hope.
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.
We are only the temporary custodians of the particles which we are made of. They will go on to lead a future existence in the enormous universe that made them.
Time can behave like another direction in space under extreme conditions.
Many people do not like the idea that time has a beginning, probably because it smacks of divine intervention.
Many people do not like the idea that time has a beginning, probably because it smacks of divine intervention. (The Catholic Church, on the other hand, seized on the big bang model and in 1951 officially pronounced it to be in accordance with the Bible.
I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science.
Hang in there, retirement is only thirty years away!
One is always a long way from solving a problem until one actually has the answer.
Only in the few universes that are like ours would intelligent beings develop and ask the question: "Why is the universe the way we see it?" The answer is then simple: If it had been any different, we would not be here!
Our only chance of long-term survival is not to remain lurking on planet Earth, but to spread out into space.
My expectations were reduced to zero when I was 21. Everything since then has been a bonus.
We've created life in our own image.
You can't regulate every lab in the world.
Nothing is better than reading and gaining more and more knowledge.
I had a bet with Gordon Kane of Michigan University that the Higgs particle wouldn't be found.
Perhaps we could write code to optimize code, then run that code through the code optimizer?
Now, radical forward thinking is offering hope for the future: Replacement body parts to order. A team of scientists in California believe that if you can design them on a computer, you should be able to print them out.
Science fiction can be exciting and very gripping, but it doesn't tell us anything about the universe in which we live.
According to 'M' theory, ours is not the only universe. Instead, 'M' theory predicts that a great many universes were created out of nothing.
You cannot predict the future.
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.
There are too many accidents that can befall life on a single planet.
There is nothing bigger or older than the universe.
The concern here is that financial services become a kind of tech-led Wild West.
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.
The thing about smart people is that they seem like crazy people to dumb people.
What was God doing before the divine creation?
What lies north of the North Pole?
Perhaps one day I will go into space.
We are the product of quantum fluctuations in the very early universe.
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.
A zero-gravity flight is a first step toward space travel.
Nuclear weapons need large facilities, but genetic engineering can be done in a small lab. You can't regulate every lab in the world. The danger is that either by accident or design, we create a virus that destroys us.
What place, then, for a creator?
Science is not only a disciple of reason but, also, one of romance and passion.
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.
I am just a child who has never grown up. I still keep asking these 'how' and 'why' questions. Occasionally, I find an answer.
We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.
Considering the number of planets and stars that we know exist, it's extremely unlikely that we are the only form of evolved life.
I think the next century will be the century of complexity.
The human race shouldn't have all its eggs in one basket, or on one planet. Let's hope we can avoid dropping the basket until we have spread the load.
Scientists have become the bearers of the torch of discovery in our quest for knowledge.
I've noticed that even people who believe in fate look both ways before crossing the street.
Equations are just the boring part of mathematics. I attempt to see things in terms of geometry.
I enjoy all forms of music -- pop, classical and opera.
It is not clear that intelligence has any long-term survival value.
Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it.
I want my books sold on airport bookstalls.
Philosophers have not kept up with modern developments in science. Particularly physics.
When I hear of Schrödinger's cat, I reach for my pistol.
It is tribute to how far we have come in theoretical physics that it now takes enormous machines and a great deal of money to perform experiments whose results we can not predict.
I think the discovery of supersymmetric partners for the known particles would revolutionize our understanding of the universe.
Never put off the work till tomorrow what you can put off today.
Teamwork means never having to take all the blame yourself.
Science is beautiful when it makes simple explanations of phenomena or connections between different observations.
The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years.
The progress of the human race in understanding the universe has established a small corner of order in an increasingly disordered universe.
People won't have time for you if you are always angry or complaining.
I'm an atheist.
We think we have solved the mystery of creation. Maybe we should patent the universe and charge everyone royalties for their existence.
The Paralympic Games is about transforming our perception of the world.
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.
I have visited Japan several times and have always been shown wonderful hospitality.
Many people find the universe confusing -- it's not.
The meaning in life is not out there but inbetween our ears. In many ways this makes us the lords of creation.
The cyclic universe theory predicts no gravitational waves from the early universe.
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.
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.
I regard the afterlife to be a fairy story for people that are afraid of the dark.
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.
The past, like the future, is indefinite and exists only as a spectrum of possibilities.
There is no prescribed route to follow to arrive at a new idea. You have to make the intuitive leap.
There is no prescribed route to follow to arrive at a new idea. You have to make the intuitive leap. But the difference is that once you've made the intuitive leap you have to justify it by filling in the intermediate steps. N my case, it often happens that I have an idea, but then I try to fill in the intermediate steps and find that they don't work, so I have to give it up.
As Irving Good realised in 1965, machines with superhuman intelligence could repeatedly improve their design even further, triggering what Vernor Vinge called a 'singularity.'
Someone told me that each equation I included in the book would halve the sales.
The boundary condition of the universe is that it has no boundary.
Whether you want to uncover the secrets of the universe, or you just want to pursue a career in the 21st century, basic computer programming is an essential skill to learn.
I have a full and satisfying life. My work and my family are very important to me.
We don't let animals suffer, so why humans?
There is no heaven or afterlife for broken-down computers; that is a fairy story for people afraid of the dark.
I want to encourage public interest in space. I have never let my condition stop me. You only live once.
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.
I have found far greater enthusiasm for science in America than here in Britain. There is more enthusiasm for everything in America.
I'm never any good in the morning. It is only after four in the afternoon that I get going.
There should be a better way to start a day than waking up every morning.
The increase of disorder or entropy with time is one example of what is called an arrow of time, something that distinguishes the past from the future, giving a direction to time.
In effect, we have redefined the task of science to be the discovery of laws that will enable us to predict events up to the limits set by the uncertainty principle.
Over a very small number of rolls of the dice, the uncertainty principle is very important.
Maybe my variety is due to bad absorption of vitamins.
Maxwell is the physicist's physicist.
It is very important for young people keep their sense of wonder and keep asking why.
At times, I get very lonely because people are afraid to talk to me or don't wait for me to write a response. I'm shy and tongue-tied at times. I find it difficult to talk to people who I don't know.
No one can resist the idea of a crippled genius.
Computers double their performance every month.
Money is not everything. There's Master card and Visa.
If you believe in science, like I do, you believe that there are certain laws that are always obeyed.
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.
The human race may be the only intelligent beings in the galaxy.
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?
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.
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.
Cosmology is a rapidly advancing field.
Doing a job RIGHT the first time gets the job done. Doing the job WRONG fourteen times gives you job security.
Because there is a law such as gravity, the Universe can and will create itself from nothing.
Because there is a law such as gravity, the Universe can and will create itself from nothing. Spontaneous creation is the reason there is something rather than nothing, why the Universe exists, why we exist. It is not necessary to invoke God to light the blue touch paper and set the Universe going.
I'm really easy to get along with once you see it my way.
Before we understand science, it is natural to believe that God created the universe.
Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor.
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.
Why are we here? Where do we come from? Traditionally, these are questions for philosophy, but philosophy is dead.
Without imperfection, you or I would not exist.
Science makes God unnecessary.
Its a crazy world out there. Be curious.
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.
When the going gets tough, the tough take a coffee break.
I had not expected 'A Brief History of Time' to be a best seller.
I had not expected 'A Brief History of Time' to be a best seller. It was my first popular book and aroused a great deal of interest. Initially, many people found it difficult to understand. I therefore decided to try to write a new version that would be easier to follow.
Go the extra mile. It makes your boss look like an incompetent slacker.
I like physics, but I love cartoons.
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.
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.
One should love animals. They are so tasty.
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.
I was not a good student. I did not spend much time at college; I was too busy enjoying myself.
I have wondered about time all my life.
It now appears that the way the universe began can indeed be determined, using imaginary time.
I believe in universal health care. And I am not afraid to say so.
Maybe I don't have the most common kind of motor neuron disease, which usually kills in two or three years.
God may exist, but science can explain the universe without the need for a creator.
'The Simpsons' appearances were great fun. But I don't take them too seriously. I think 'The Simpsons' have treated my disability responsibly.
Teamwork... means never having to take all the blame yourself.
Today, we commit to this next great leap into the cosmos because we're human, and our nature is to fly.
Of course it is possible that UFO's really do contain aliens as many people believe, and the government is hushing it up.
A person who smiles in the face of adversity...probably has a scapegoat.
I don't want to write an autobiography because I would become public property with no privacy left.
The Simpsons is the best thing on American television.
There are plenty of dead scientists I admire, but I can't think of any living ones. This is probably because it is only in retrospect that one can see who made the important contributions.
Why do we remember the past, but not the future?
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.
If we ever do find a complete theory of the universe, it would be a great triumph of human reason but it wouldn't leave much for us to do. We need an intellectual challenge.
Children in backseats cause accidents. Accidents in backseats cause children.
Earth might one day soon resemble the planet Venus.
So some might imagine that I am an expert on time, although of course these days an expert is not necessarily a good thing to be.
The human capacity for guilt is such that people can always find ways to blame themselves.
God not only plays dice, but also sometimes throws them where they cannot be seen.
By 2600, the world population would be standing shoulder to shoulder and the electricity consumed would make the earth glow red-hot.
It is reasonable to ask who or what created the universe, but if the answer is God, then the question has merely been deflected to that of who created God.
Science can lift people out of poverty and cure disease. That, in turn, will reduce civil unrest.
As scientists, we step on the shoulders of science, building on the work that has come before us -- aiming to inspire a new generation of young scientists to continue once we are gone.
Don't be disabled in spirit as well as physically.
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.
Half the battle is just showing up.
Success is a relative term. It brings so many relatives.
I think the human race doesn't have a future if it doesn't go into space.
Many badly needed goals, like fusion and cancer cure, would be achieved much sooner if we invested more.
We are all now connected by the internet, like neurons in a giant brain.
Although I cannot move and I have to speak through a computer, in my mind I am free.
Even if it turns out that time travel is impossible, it is important that we understand why it is impossible.
Sometimes I wonder if I'm as famous for my wheelchair and disabilities as I am for my discoveries.
People who boast about their I.Q. are losers.
Among physicists, I'm respected I hope.
So next time someone complains that you have made a mistake, tell him that may be a good thing. Because without imperfection, neither you nor I would exist.
If at first you don't succeed, try management.
Life would be tragic if it weren't funny.
The wise never marry, and when they marry they become otherwise.
I believe there are no questions that science can't answer about a physical universe.
My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.
However difficult life may seem, there is always something you can do and succeed at.
One can't predict the weather more than a few days in advance.
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.