[On leaving the U.S. for Italy:] I ought to be accomplishing thrice as much as now, and feel that I am soul-bound and thought-bound in this land of dollars and cents.

I honor every woman who has strength enough to step out of the beaten path when she feels that her walk lies in another.

A pun, like champagne, loses its sparkle when too long drawn out. Its flash is its savor.

Words are cold and formal things.

Every gentle word, every generous thought, every unselfish deed, will become a pillar of eternal beauty in the life to come.

In every opportunity, question your beliefs. Don’t forget that most of the beliefs are preposterous empty stories!

Some reckon their age by years, Some measure their life by art; But some tell their days by the flow of their tears And their lives by the moans of their hearts.

Many things about our salvation are beyond our comprehension, but not beyond our trust.

I'm communicating with the directors of the Soviet companies, and I see that it is wrong, but when I go to the official discussions, they discuss we should change the color of the walls.

To run this business ... you need ... optimism, humanism, enthusiasm, intuition, curiosity, love, humour, magic and fun, and that secret ingredient-euph oria.

Nnothing tends more to the corruption of science than to suffer it to stagnate. These waters must be troubled, before they can exert their virtues.

When in doubt, act boldly, as if it were impossible to fail. In essence it is.

Personal style? I don't really believe in that. Whatever is comfortable.