"The meaning of life does not consist in the mere fact of existing, but in the power of perceiving and making known our existence, and that of others."

"The very act of observing changes the observed."

"The aim of atomic physics is to understand the world in which we live, and we are ourselves a part of this world."

"Accuracy and clarity of expression are a matter of degree."

"We must be clear that, when it comes to atoms, language can be used only as in poetry. The poet, too, is not nearly so concerned with describing facts as with creating images and establishing mental c…"