The highest happiness of man ... is to have probed what is knowable and quietly to revere what is unknowable.

A phenomenon like Mozart remains an inexplicable thing.

I am the spirit that negates. And rightly so, for all that comes to be Deserves to perish wretchedly; 'Twere better nothing would begin. Thus everything that that your terms, sin, Destruction, evil represent— That is my proper element.

How can one learn to know oneself? Never by introspection, rather by action.

If your treat an individual... as if he were what he ought to be and could be, he will become what he ought to be and could be.

To have a positive religion is not necessary. To be in harmony with yourself and the universe is what counts, and this is possible without positive and specific formulation in words.

The man with insight enough to admit his limitations comes nearest to perfection.