To love means to commit oneself without guarantee, to give oneself completely in the hope that our love will produce love in the loved person.

Immature love says: 'I love you because I need you.' Mature love says: 'I need you because I love you.'

The danger of the past was that men became slaves. The danger of the future is that man may become robots.

There is hardly any activity, any enterprise, which is started out with such tremendous hopes and expectations, and yet which fails so regularly, as love.

That man can destroy life is just as miraculous a feat as that he can create it, for life is the miracle, the inexplicable. In the act of destruction, man sets himself above life; he transcends himself as a creature. Thus, the ultimate choice for a man, inasmuch as he is driven to transcend himself, is to create or to destroy, to love or to hate.

We all dream; we do not understand our dreams, yet we act as if nothing strange goes on in our sleep minds, strange at least by comparison with the logical, purposeful doings of our minds when we are awake.

Why should society feel responsible only for the education of children, and not for the education of all adults of every age?

Mother's love is peace. It need not be acquired, it need not be deserved.

There is no meaning to life except the meaning man gives his life by the unfolding of his powers.

Immature love says: 'I love you because I need you.' Mature love says 'I need you because I love you.'

Who will tell whether one happy moment of love or the joy of breathing or walking on a bright morning and smelling the fresh air, is not worth all the suffering and effort which life implies.

The successful revolutionary is a statesman, the unsuccessful one a criminal.

In love the paradox occurs that two beings become one and yet remain two.