"I was born not knowing and have had only a little time to change that here and there."

"The thing that I cannot understand is what I cannot create. And I can't create a universe. So I don't understand the universe."

"I was once in a situation where I was giving a lecture, and I had some equations on the board. A guy in the audience stood up and said, 'Professor Feynman, your equations are wrong!' I looked at them …"

"I don't feel frightened by not knowing things, by being lost in a mysterious universe without any purpose, which is the way it really is, as far as I can tell, possibly. It doesn't frighten me."

"I don't believe in miracles, because I believe in science."