Confidence is directness and courage in meeting the facts of life.

We always live at the time we live and not at some other time, and only by extracting at each present time the full meaning of each present experience are we prepared for doing the same thing in the future.

To the being of fully alive, the future is not ominous but a promise; it surrounds the present like a halo.

Mind is a verb not a noun.

One can think effectively only when one is willing to endure suspense and to undergo the trouble of searching.

We cannot set up, out of our heads, something we regard as an ideal society.

If we learn not humility, we learn nothing.