Free man is by necessity insecure, thinking man by necessity uncertain.

I would say democracy once meant an organizational society and a state, in which the individual citizen is - feels - responsible, and acts responsibly, and participates in decision-making.

I shall become a master in this art only after a great deal of practice.

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.

I would say, compared with the 19th century, compared with most previous history, this is as good or better a society than any which man has ever made. But that doesn't mean it is such a good one.

To die is poignantly bitter, but the idea of having to die without having lived is unbearable.

Having lost religious faith and the humanistic values bound up with it, he [man] concentrated on technical and material values and lost the capacity for deep emotional experiences, for the joy and sadness that accompany them.