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.

If it is true, as I have tried to show, that love is the only sane and satisfactory answer to the problem of human existence, then any society which excludes, relatively, the development of love, must in the long run perish of its own contradiction with the basic necessities of human nature.

Can freedom become a burden, too heavy for man to bear, something he tries to escape from?..Is there not also, perhaps, besides an innate desire for freedom, an instinctive wish for submission?

A person who has not been completely alienated, who has remained sensitive and able to feel, who has not lost the sense of dignity, who is not yet 'for sale', who can still suffer over the suffering of others, who has not acquired fully the having mode of existence - briefly, a person who has remained a person and not become a thing - cannot help feeling lonely, powerless, isolated in present-day society.

Sanity is only that which is within the frame of reference of conventional thought.

Is love an art? Then it requires knowledge and effort. Love is not a spontaneous feeling, a thing that you fall into, but is something that requires thought, knowledge, care, giving, and respect. And it is something that is rare and difficult to find in capitalism, which commodifies human activity.

I feel worried, deeply worried, only about one thing - the possibility that we fall... that we cannot avoid an atomic war.