Only the flexibly creative person can really manage the future, Only the one who can face novelty with confidence and without fear.

Fear of knowing is very deeply a fear of doing.

What we call 'normal' in psychology is really a psychopathology of the average, so undramatic and so widely spread that we don't even notice it ordinarily.

We must remember that knowledge of one’s own deep nature is also simultaneously knowledge of human nature in general.

The theory of science which permits and encourages the exclusion of so much that is true and real and existent cannot be considered a comprehensive science.

It seems that the necessary thing to do is not to fear mistakes, to plunge in, to do the best that one can, hoping to learn enough from blunders to correct them eventually.

One's only failure is failing to live up to one's own possibilities.