The search for happiness is one of the chief sources of unhappiness.
Men weary as much of not doing the things they want to do as of doing the things they do not want to do.
The greatest weariness comes from work not done.
Our sense of power is more vivid when we break a man's spirit than when we win his heart.
Sometimes we feel the loss of a prejudice as a loss of vigor.
It still holds true that man is most uniquely human when he turns obstacles into opportunities.