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.
If you follow no other truth, follow the truth that within your being is called joy. If you follow that, you''re always going to be right where you need to be, and you will always have life within your being.
