Religion belonged to the infancy of humanity. Now that humanity had come of age, it should be left behind.

I take up the standpoint that the tendency to aggression is an innate, independent, instinctual disposition in man, and I come back now to the statement that it constitutes the most powerful obstacle to culture.

Not to know the past is to be in bondage to it, while to remember, to know, is to be set free.

Civilization has little to fear from educated people and brain-workers. In them the replacement of religious motives for civilized behaviors by other, secular motives, would proceed unobtrusively. . . .

The rest of our enquiry is made easy because this God-Creator is openly called Father. Psycho-analysis concludes that he really is the father, clothed in the grandeur in which he once appeared to the small child.

The communal life of human beings had . . . a two-fold foundation: the compulsion to work, which was created by external necessity, and the power of love.

We know less about the sexual life of little girls than of boys. But we need not feel ashamed of this distinction; after all, the sexual life of adult women is a 'dark continent' for psychology.