The ego is not master in its own house.

Love in the form of longing and deprivation lowers the self regard.

In the last analysis the entire field of psychology may reduce to biological electrochemistry.

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

Man has, as it were, become a kind of prosthetic God.

The most complicated achievements of thought are possible without the assistance of consciousness.

One feels inclined to say that the intention that man should be 'happy' is not included in the plan of Creation.' . . . We are so made that we can derive intense enjoyment only from a contrast and very little from a state of things.