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.
Consciously or unconsciously, every one of us does render some service or other. If we cultivate the habit of doing this service deliberately, our desire for service will steadily grow stronger, and will make, not only for our own happiness, but that of the world at large.
Think to Thank. In these three words are the finest capsule course for a happy marriage, formula for enduring friendship, and a pattern for personal happiness.