"One must make a distinction between the two types of truth, the trivial ones where opposites are clearly absurd, and the profound truths, where the opposite is also a profound truth."

"It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about nature."

"Physics is not about how the world is, it is about what we can say about the world."

"Atomic physics has taught us that we cannot be observers without at the same time being participants."

"We are here in a position to be able to understand that the human spirit cannot be completely satisfied by science alone."