Loving and perishing: it's been a rhyme all these eternities. The will to love: that is, also being willing to die.

Wherever on earth the religious neurosis has appeared we find it tied to three dangerous dietary demands: solitude, fasting, and sexual abstinence.

To blaspheme the earth is now the most dreadful sin, and to rate the heart of the unknowable higher than the meaning of the earth!

Phlegmatic natures can be inspired to enthusiasm only by being made into fanatics.

What then is truth? A movable host of metaphors, metonymies, and anthropomorphisms: in short, a sum of human relations which have been poetically and rhetorically intensified, transferred, and embellished, and which, after long usage, seem to a people to be fixed, canonical, and binding. Truths are illusions which we have forgotten are illusions — they are metaphors that have become worn out and have been drained of sensuous force.

Sometimes people don't want to hear the truth because they don't want their illusions destroyed.

Growth in wisdom can be measured precisely by decline in bile.