"We must say that there are as many squares as there are numbers."

"The Bible shows the way to go to heaven, not the way the heavens go."

"We cannot teach people anything; we can only help them discover it within themselves."

"It is a unyielding truth that the highest expression of strength is tenderness toward the vulnerable — an essential principle for the reflective life."

"Before I'd written movies, I never could do big set-piece scenes with a lot of different speakers - when you've got twelve people around a dinner table talking at cross purposes. I had always been impressed by other people's ability to do that."

"I enjoyed working as a model a lot as it let me travel and I got to do some really interesting projects."

"My mother kept asking me, 'When are you going to do a gospel album?' And I've always wanted to do a gospel album. Everybody was going on about it, so mom started hounding me more."

"It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years."