"You are always a valuable, worthwhile human being, not because anybody says so, not because you''re successful, not because you make a lot of money, but because you decide to believe it and for no other reason."
Achievement of your happiness is the only moral purpose of your life, and that happiness, not pain or mindless self-indulgence, is the proof of your moral integrity, since it is the proof and the result of your loyalty to the achievement of your values.