Special knowledge is a terrible disadvantage.

We all must do what Christ did. We must make our experiment. We must make mistakes. We must live out our own version of life. And there will be error. If you avoid error you do not live.

In every adult there lurks a child— an eternal child, something that is always becoming, is never completed, and calls for unceasing care, attention, and education. That is the part of the personality which wants to develop and become whole.

We are so accustomed to the apparently rational nature of our world that we can scarcely imagine anything happening that cannot be explained by common sense. The primitive man confronted by a shock of this kind would not doubt his sanity; he would think of fetishes, spirits or gods

Science is not ... a perfect instrument, but it is a superb and invaluable tool that works harm only when taken as an end in itself.

Thank God I'm not a Jungian.

In thirty years I have treated many patients. Among all my patients in the second half of life, every one of them fell ill because he had lost that which the living religions of every age had given their followers, and none of them was really healed who did not regain his religious outlook.