Contentment preserves one from catching cold. Has a woman who knew that she was well dressed ever caught a cold? No, not even when she had scarcely a rag on her back.
Contentment is never the outcome of fulfillment, of achievement, or of the possession of things; it is not born of action or inaction. It comes with the fullness of what is, not in the alteration of it.
Moderation, which consists in indifference about little things, and in a prudent and well-proportioned zeal about things of importance, can proceed from nothing but true knowledge, which has its foundation in self-acquaintance.
For unless one is able to live fully in the present, the future is a hoax. There is no point whatever in making plans for a future which you will never be able to enjoy. When your plans mature, you will still be living for some other future beyond. You will never, never be able to sit back with full contentment and say, "Now, I've arrived!" Your entire education has deprived you of this capacity because it was preparing you for the future, instead of showing you how to be alive now.
A sense of contentment is crucial to being happy. Physical health, material wealth and friends contribute to this, but contentment governs our relations with them all.