"The greatest change will be in the thinking habits of the human race. It will learn to look at things in a new way. Quantum theory will force it to do so."

"The universe is a grand illusion. But it is a very persistent one."

"The number of children born to a marriage ought to be limited, and that a man who has already had some children should be sterilized."

"The ultimate goal of science is to understand the universe and our place in it."

"The true meaning and purpose of human life lies in our striving for understanding and knowledge."