Man... knows only when he is satisfied and when he suffers, and only his sufferings and his satisfactions instruct him concerning himself, teach him what to seek and what to avoid. For the rest, man is a confused creature; he knows not whence he comes or whither he goes, he knows little of the world, and above all, he knows little of himself.

To appreciate the noble is a gain which can never be torn from us.

Man knows himself only insofar as he knows the world, becoming aware of it if only within himself, and of himself self only within it. Each new subject, well observed, opens up within us a new organ of thought.

Knowing is not enough; we must apply. Willing is not enough; we must do.

I will listen to anyone's convictions, but pray keep your doubts to yourself.

Music, in the best sense, does not require novelty; nay, the older it is, and the more we are accustomed to it, the greater its effect.

The realization of the self is only possible if one is productive, if one can give birth to one's own potentialities.