In every age immorality has found no less support in religion than morality has. If the achievements of religion in respect to man's happiness, susceptibility to culture and moral control are no better than this, the question cannot but arise whether we are not overrating its necessity for mankind, and whether we do wisely in basing our cultural demands upon it.

The idea of life having a purpose stands and falls with the religious system.

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?

By abolishing private property one deprives the human love of aggression.

The pleasure principle long persists, however, as the method of working employed by the sexual instincts, which are so hard to 'educate', and, starting from those instincts, or in the ego itself, it often succeeds in overcoming the reality principle, to the detriment of the organism as a whole.

Men are more moral than they think and far more immoral than they can imagine.

No one who has seen a baby sinking back satiated from the breast and falling asleep with flushed cheeks and a blissful smile can escape the reflection that this picture persists as a prototype of the expression of sexual satisfaction in later life.