You must be born for your physician, otherwise you are bound to perish because of your physician.

[Heraclitus] did not require humans or their sort of knowledge, since everything into which one may inquire he despises [as being] in contrast [to his own] inward-turning wisdom. [To him] all learning from others is a sign of nonwisdom, because the wise man focuses his vision on his own intelligence.

Most people are too stupid to act in their own interest

An educator never says what he himself thinks, but only that which he thinks it is good for those whom he is educating to hear.

I conjure you, my brethren, to remain faithful to earth, and do not believe those who speak unto you of super terrestrial hopes! Poisoners they are, whether they know it or not.

To live as I incline, or not to live at all: so do I wish; so wisheth also the holiest. But alas! how have I still - inclination? Have I-still a goal? A haven towards which MY sail is set?A good wind? Ah, he only who knoweth WHITHER he saileth, knoweth what wind is good, and a fair wind for him.What still remaineth to me? A heart weary and flippant; and unstable will; fluttering wings; a broken backbone.This seeking for MY home: O Zarathustra, dost thou know that this seeking hath been MY home-sickening; it eateth me up.

I love him who is of a free spirit and a free heart: thus is his head only the bowels of his heart; his heart, however, causeth his down-going.