Quotes from Stephen Hawking


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One can't predict the weather more than a few days in advance.


We lived in a tall, narrow Victorian house, which my parents had bought very cheaply during the war, when everyone thought London was going to be bombed flat. In fact, a V-2 rocket landed a few houses away from ours. I was away with my mother and sister at the time, but my father was in the house.


There are too many accidents that can befall life on a single planet.


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 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.


For years, my early work with Roger Penrose seemed to be a disaster for science. It showed that the universe must have begun with a singularity, if Einstein's general theory of relativity is correct. That appeared to indicate that science could not predict how the universe would begin.


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.


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.


One cannot really argue with a mathematical theorem.


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.


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.


However difficult life may seem, there is always something you can do and succeed at.


God not only plays dice, but also sometimes throws them where they cannot be seen.


If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans.


We are all now connected by the Internet, like neurons in a giant brain.


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.


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.


Intelligence is the ability to adapt to change.


People won't have time for you if you are always angry or complaining.


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.