I see my life in terms of music.

Fear or stupidity has always been the basis of most human actions.

I appeal to all men and women, whether they be eminent or humble, to declare that they will refuse to give any further assistance to war or the preparation of war.

Schools need not preach political doctrine to defend democracy. If they shape men capable of critical thought and trained in social attitudes, that is all that is necessary.

Life is sacred, that is to say, it is the supreme value, to which all other values are subordinate.

Play is the highest from of research.

But without deeper reflection one knows from daily life that one exists for other people--first of all for those upon whose smiles and well-being our own happiness is wholly dependent, and then for the many, unknown to us, to whose destinies we are bound by the ties of sympathy.