The creed which accepts as the foundation of morals, Utility, or the Greatest-Happiness Principle, holds that actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness. By happiness is intended pleasure, and the absence of pain; by unhappiness, pain, and the privation of pleasure.
If you have done something meritorious, you experience pleasure and happiness; if wrong things, suffering. A happy or unhappy life is your own creation. Nobody else is responsible. If you remember this, you won’t find fault with anybody. You are your own best friend as well as your worst enemy. (99)