"The human race is just a chemical scum on a moderate-sized planet, orbiting around a very average star in the outer suburb of one among a hundred billion galaxies. We are so insignificant that I can't believe the whole universe exists for our benefit. That would be like saying that you would disappear if I closed my eyes."
"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."
"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."
"However difficult life may seem, there is always something you can do and succeed at."
"[In the Universe it may be that] Primitive life is very common and intelligent life is fairly rare. Some would say it has yet to occur on Earth."