The mature person becomes able to differentiate feelings into as many nuances, strong and passionate experiences, or delicate and sensitive ones, as in the different passages of music in a symphony. Unfortunately, many of us have feelings limited like notes in a bugle call.

There is no authentic inner freedom that does not, sooner or later, also affect and change human history.

The most effective way to ensure the value of the future is to confront the present courageously and constructively.

The word courage comes from the same stem as the French word Coeur, meaning "heart." Thus just as one's heart, by pumping blood to one's arms, legs, and brain enables all the other physical organs to function, so courage makes possible all the psychological virtues. Without courage other values wither away into mere facsimiles of virtue.

When we are dealing with human beings, no truth has reality by itself; it is always dependent upon the reality of the immediate relationship.

They pursue meaninglessness until they can force it to mean.

Whereas moral courage is the righting of wrongs, creative courage, in contrast, is the discovering of new forms, new symbols, new patterns on which a new society can be built.