Once and for all, there are many things I choose not to know.--Wisdom sets limits even to knowledge.

There is a certain right by which we many deprive a man of life, but none by which we may deprive him of death; this is mere cruelty.

Where do your greatest dangers lie?--In pity.

The job of rearing a child consists of making conscious activities unconscious.

The disgust with dirt can be so great that it keeps us from cleaning ourselves--from "justifying" ourselves.

The Refinement of Shame. People are not ashamed to think something foul, but they are ashamed when they think these foul thoughts are attributed to them.

To escape boredom, man works either beyond what his usual needs require, or else he invents play, that is, work that is designed to quiet no need other than that for working in general.