"No, I certainly do not believe in this superstition. But you know, they say that it does bring luck even if you don't believe in it!"

"The meaning of our words is always context-dependent."

"The fact that religions can exist, says that there is something in the human mind which is not satisfied by physics."

"The opposite of a shallow truth is a falsehood. The opposite of a profound truth may well be another profound truth."

"A physicist is just an atom's way of looking at itself."