America is the most grandiose experiment the world has seen, but, I am afraid, it is not going to be a success.

The Mosaic religion had been a Father religion; Christianity became a Son religion. The old God, the Father, took second place; Christ, the Son, stood in His stead, just as in those dark times every son had longed to do.

[The child receives impressions like] a photographic exposure that can be developed after any interval of time and transformed into a picture.

There is a powerful force within us, an un-illuminated part of the mind - separate from the conscious mind that is constantly at work molding our thought, feelings, and actions.

Thus we arrive at the singular conclusion that of all the information passed by our cultural assets it is precisely the elements which might be of the greatest importance to us and which have the task of solving the riddles of the universe and of reconciling us to the sufferings of life -- it is precisely those elements that are the least well authenticated of any.

In some place in my soul, in a very hidden corner, I am a fanatical Jew. I am very much astonished to discover myself as such in spite of all efforts to be unprejudiced and impartial. What can I do against it at my age?

We have long observed that every neurosis has the result, and therefore probably the purpose, of forcing the patient out of real life, of alienating him from actuality.