Man can never stand still. He must find solutions to this contradiction, and ever better solutions to the extent to which reality enables him.

Even if man's hunger and thirst and his sexual strivings are completely satisfied, 'he' is not satisfied. In contrast to the animal his most compelling problems are not solved then, they only begin. He strives for power or for love, or for destruction, he risks his life for religious, for political, for humanistic ideals, and these strivings are what constitutes and characterizes the peculiarity of human life.

Man unites himself with the world in the process of creation.

I believe that if an individual is not on the path to transcending his society and seeing in what way it furthers or impedes the development of human potential, he cannot enter into intimate contact with his humanity.

If one is not productive in other spheres, one is not productive in the love either.

We talk a great deal about Russia today, and I'm afraid that in twenty years, we and Russia will be more similar than different.

Man is the only animal for whom his own existence is a problem which he has to solve.