My success wasn't so much due to intelligence, but the fact that I stuck with problems longer.

I appeal to all men and women, whether they be eminent or humble, to declare that they will refuse to give any further assistance to war or the preparation of war.

On the other hand, although I have a regular work schedule, I take time to go for long walks on the beach so that I can listen to what is going on inside my head. If my work isn't going well, I lie down in the middle of a workday and gaze at the ceiling while I listen and visualize what goes on in my imagination.

The ideas that have lighted my way have been kindness, beauty and truth.

Any fool can know. The point is to understand.

It is a precarious undertaking to say anything reliable about aims and intentions.

But love brings much happiness - much more so than pining brings pain.