My interest in science was always essentially limited to the study of principles.... That I have published so little is due to this same circumstance, as the great need to grasp principles has caused me to spend most of my time on fruitless pursuits.

New frameworks are like climbing a mountain - the larger view encompasses rather than rejects the more restricted view.

Princeton is a wonderful little spot. A quaint and ceremonious village of puny demigods on stilts.

Education is what remains after one has forgotten what one has learned in school.

Thought is the organizing factor in man, intersected between the causal primary instincts and the resulting actions.

I never think of the future - it comes soon enough.

The individual feels the futility of human desires and aims and the sublimity and marvelous order which reveal themselves both in nature and in the world of thought.