We continue to shape our personality all our life. If we knew ourselves perfectly, we should die.

In graduate school, I learned this simple distinction: when people are driving themselves crazy, they have neuroses or psychoses. When they drive other people crazy, they have personality disorders.

Only those who respect the personality of others can be of real use to them

The evil that is in the world almost always comes of ignorance, and good intentions may do as much harm as malevolence if they lack understanding.

Man is the only creature that refuses to be what he is.

The gods had condemned Sisyphus to ceaselessly rolling a rock to the top of a mountain, whence the stone would fall back of its own weight. They had thought with some reason that there is no more dreadful punishment than futile and hopeless labor.