The limited circle is pure.

Now the Sirens have a still more fatal weapon than their song, namely their silence... someone might possibly have escaped from their singing; but from their silence, certainly never.

They did not know what we can now guess at, contemplating the course of history: that change begins in the soul before it appears in ordinary existence.

This inescapable duty to observe oneself: if someone else is observing me, naturally I have to observe myself too; if none observe me, I have to observe myself all the closer.

Many a book is like a key to unknown chambers within the castle of one’s own self.

Paths are made by walking

From a certain point onward there is no longer any turning back. That is the point that must be reached.