"Mathematics, rightly viewed, possesses not only truth, but supreme beauty — a beauty cold and austere, like that of sculpture, without appeal to any part of our weaker nature, without the gorgeous tra…"

"The highest court is in the end one's own conscience and conviction—that goes for you and for Einstein and every other physicist—and before any science there is first of all belief. For me, it is beli…"

"A scientific truth is not a truth that is true in all possible worlds, but a truth that is true in our world."

"Science is not only a discipline of reason but also one of romance and passion."

"The progress of science depends on the freedom of thought."