Men are by nature merely indifferent to one another; but women are by nature enemies. - Arthur Schopenhauer

Dialectic is the art of intellectual fencing; and it is only when we so regard it that we can erect it into a branch of knowledge.

Truth is no harlot who throws her arms round the neck of him who does not desire her; on the contrary, she is so coy a beauty that even the man who sacrifices everything to her can still not be certain of her favors.

No difference of rank, position, or birth, is so great as the gulf that separates the countless millions who use their head only in the service of their belly, in other words, look upon it as an instrument of the will, and those very few and rare persons who have the courage to say: No! my head is too good for that; it shall be active only in its own service; it shall try to comprehend the wondrous and varied spectacle of this world and then reproduce it in some form, whether as art or as literature, that may answer to my character as an individual.