Quotes by Stephen Hawking

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

"I'm not afraid of death, but I'm in no hurry to die. I have so much I want to do first."

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

"Not only does God play dice, but... he sometimes throws them where they cannot be seen."

"I believe in universal health care. And I am not afraid to say so."

"Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor."

"Intelligence is the ability to adapt to change."

"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."

"Scientists have become the bearers of the torch of discovery in our quest for knowledge."

"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."

"God is the name people give to the reason we are here. But I think that reason is the laws of physics rather than someone with whom one can have a personal relationship. An impersonal God."

"I believe there are no questions that science can't answer about a physical universe."

"God may exist, but science can explain the universe without the need for a creator."

"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."

"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."

"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."

"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."

"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."

"Women. They are a complete mystery."

"Work gives you meaning and purpose and life is empty without it."

"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."

"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."

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

"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."

"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."

"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."

"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."

"Computers double their performance every month."