We forget that, although freedom of speech constitutes an important victory in the battle against old restraints, modern man is in a position where much of what "he" thinks and says are the things that everybody else thinks and says; that he has not acquired the ability to think originally - that is, for himself - which alone gives meaning to his claim that nobody can interfere with the expression of his thoughts.

Freedom is the fundamental condition for any growth.

People think that to love is simple, but that to find the right object to love - or to be loved by - is difficult.

If we begin to say, "Well, maybe we can cope better with the Russians if we also transform ourselves into a managed society, if we, as somebody put it the other day, train our soldiers to be like the Turks, who have fought so bravely in Korea, if we are willing to change our whole way of life for the sake of so-called "survival," then I think we do exactly that which threatens our survival.

Love is not primarily a relationship to a specific person; it is an attitude, an ordination of character which determines the relatedness of the person to the whole world as a whole, not toward one object of love

We are terribly imaginative, as far as technique in science is concerned. As far as changes in social arrangements are concerned, we lack utterly in imagination.

Man's main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.