How can a man know what is good or best for him, and yet chronically fail to act upon his knowledge?
All virtue is summed up in dealing justly.
For both excessive and deficient exercise ruin bodily strength, and, similarly, too much or too little eating or drinking ruins health, whereas the proportionate amount produces, increases, and preserves it.
The worst form of inequality is to try to make unequal things equal.
Moral experience—the actual possession and exercise of good character—is necessary truly to understand moral principles and profitably to apply them.