More quotes by Stephen Hawking

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