More quotes by Stephen Hawking

"Life would be tragic if it weren't funny."
"The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."
"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."
"I regard the afterlife to be a fairy story for people that are afraid of the dark"
"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."