Our hands we open of our own free will, and the good flies, which we can never recall.

One must be something, in order to do something.

God could cause us considerable embarrassment by revealing all the secrets of nature to us: we should not know what to do for sheer apathy and boredom.

The person born with a talent they are meant to use will find their greatest happiness in using it.

Analysis and synthesis are both as necessary to the thinking spirit as inspiration and expiration to the organism.

This is what they all come to who exclusively harp on experience. They do not stop to consider that experience is only one half of experience.

All intelligent thoughts have already been thought; what is necessary is only to try to think them again.