"The development of a new idea is an act of creation."

"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…"

"We have no right to assume that any physical laws exist, or if they have existed up to now, that they will continue to exist in a similar manner in the future."

"When you change your opinion, you are not a weakling. You are a scientist."

"The pursuit of knowledge is an endless journey."