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.

The right to express our thoughts means something only if we are able to have thoughts of our own

Loving becomes, and the ability to love, becomes one of the most important things in life.

There can be no real freedom without the freedom to fail.

To be loved because of one's merit, because one deserves it, always leaves doubt; maybe I did not please the person whom I want to love me, maybe this, or that - there is always a fear that love could disappear.

Understanding a person does not mean condoning; it only means that one does not accuse him as if one were God or a judge placed above him.

The real opposition is that between the ego-bound man, whose existence is structured by the principle of having, and the free man, who has overcome his egocentricity.