The emotional state that leads to achievements resembles that of a worshiper or the lover.

When forced to summarize the general theory of relativity in one sentence: Time and space and gravitation have no separate existence from matter.

My sense of god is my sense of wonder about the universe.

I have never looked upon ease and happiness as ends in themselves. This ethical basis I call the ideal of the pigsty.

The stupid are invincible.

I have firmly decided to bite the dust with a minimum of medical assistance when my time comes, and up to then to sin to my wicked heart's content.

To one bent on age, death will come as a release. I feel this quite strongly now that I have grown old myself and have come to regard death like an old debt, at long last to be discharged.