The more the drive toward life is thwarted, the stronger is the drive toward destruction; the more life is realized, the less is the strength of destructiveness. Destructiveness is the outcome of unlived life.

The fact is that the culture does not have only positive effects on our intellectual and moral functions but also negative effects.

Greedhas no satiation point, since its consummation does not fill the inner emptiness, boredom, loneliness, and depression it is meant to overcome.

Authority is not a quality one person 'has,' in the sense that he has property or physical qualities. Authority refers to an interpersonal relation in which one person looks upon another as somebody superior to him.

Happiness is a man's greatest achievement; it is the response of his total personality to a productive orientation toward himself and the world outside.

The two most far-reaching critical theories at the beginning of the latest phase of industrial society were those of Marx and Freud. Marx showed the moving powers and the conflicts in the social-historical process. Freud aimed at the critical uncovering of the inner conflicts. Both worked for the liberation of man, even though Marx's concept was more comprehensive and less time-bound than Freud's.

Love is an act of faith.