All places that the eye of heaven visits Are to a wise man ports and happy havens. Teach thy necessity to reason thus; There is no virtue like necessity.
Fame or integrity: which is more important? Money or happiness: which is more valuable? Success or failure: which is more destructive? If you look to others for fulfillment, you will never truly be fulfilled. If your happiness depends on money, you will never be happy with yourself. Be content with what you have; rejoice in the way things are. When you realize there is nothing lacking, the whole world belongs to you.
When a thoughtful human being has overcome incentives to vice and is aware of having done his bitter duty, he finds himself in a state that could be called happiness, a state of contentment and peace of mind in which virtue is its own reward.
The gospel of cheerfulness, I had almost said the gospel of amusement, is preached by people who lack experience to people who lack vitality. There is a vague impression that the world would be a good world if it were only happy, that it would be happy if it were amused, and that it would be amused if plenty of artificial recreation - that recreation for which we are now told every community stands responsible - were provided for its entertainment.