My friend...care for your psyche...know thyself, for once we know ourselves, we may learn how to care for ourselves
The understanding of mathematics is necessary for a sound grasp of ethics.
So you would rather suffer an injustice than do an injustice?
A system of morality that is based on relative emotional values is a mere illusion, a thoroughly vulgar conception that has nothing sound in it and nothing true.
Wars and revolutions and battles are due simply and solely to the body and its desires.
There is no learning without remembering.