Stephen Hawking

"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."

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

"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."

"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?"

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

"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 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."

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

"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"

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

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

"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."

"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?"

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

"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."

"My expectations were reduced to zero when I was 21. Everything since then has been a bonus."[The Science of Second-Guessing (New York Times Magazine Interview, December 12, 2004)]"

"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 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"

"why are we here?where do we come from?traditionally,these are questionsfor philosophy,but philosophy is dead"

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