"If you believe in science, like I do, you believe that there are certain laws that are always obeyed."

"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."

"I believe in the possible. I believe, small though we are, insignificant though we may be, we can reach a full understanding of the universe. You were right when you said you felt small, looking up at all that up there. We are very, very small, but we are profoundly capable of very, very big things."

"I believe there are no questions that science can't answer about a physical universe."

"God abhors a naked singularity."

"What place, then, for a creator?"

"I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science."

"People won't have time for you if you are always angry or complaining."

"Mankind's greatest achievements have come about by talking and its greatest failures by not talking. It doesn't have to be like this."

"What I have done is to show that it is possible for the way the universe began to be determined by the laws of science. In that case, it would not be necessary to appeal to God to decide how the universe began. This doesn't prove that there is no God, only that God is not necessary."

"There is no heaven or afterlife for broken-down computers that is a fairy story for people afraid of the dark."

"Ever since the dawn of civilization, people have not been content to see events as unconnected and inexplicable. They have craved an understanding of the underlying order in the world. Today we still yearn to know why we are here and where we came from. Humanity's deepest desire for knowledge is justification enough for our continuing quest. And our goal is nothing less than a complete description of the universe we live in."

"Stephen Hawking said that his quest is simply "trying to understand the mind of God"."

"The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing?"

"It is not clear that intelligence has any long-term survival value."

"Computers double their performance every month."

"Work gives you meaning and purpose and life is empty without it."