"My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all."

"The development of full artificial intelligence could spell the end of the human race."

"The universe is a wonderful place, and I'm glad to be alive to see it."

"I want my books sold on airport bookstalls."

"The only advantage of my disability is that I do not get put on a lot of boring committees."