"I want to know why the universe exists, why there is something greater than nothing."
"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."
"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," he said. "Three, if you are lucky enough to find love, remember it is there and don’t throw it away."