Man only plays when in the full meaning of the word he is a man, and he is only completely a man when he plays.

Man only plays when in the full meaning of the word he is a man, and he is only completely a man when he plays

Dare to err and to dream. Deep meaning often lies in childish plays.

Human nature has nevertheless been changed by the ever new appearance of these teachers of the purpose of existence: It now has one additional need—the need for the ever new appearance of such teachers and teachings of a “purpose.” Gradually, man has become a fantastic animal that has to fulfill one more condition of existence than any other animal: man has to believe, to know, from time to time why he exists; his race cannot flourish without a periodic trust in life—without faith in reason in life.

Discipline? I don't know the meaning of the word.

There is only one meaning of life: the act of living itself.