Vide "Pleasure" in Stanford Encyclopedia of Philosophy, qui commentarius incipit: "Pleasure, in the inclusive usages most important in moral psychology, ethical theory, and the studies of mind, includes all joy and gladness—all our feeling good, or happy. It is often contrasted with similarly inclusive pain or suffering, which is similarly thought of as including all our feeling bad." Plurimae encyclopaediae, sicut Stanford supra et Encyclopaedia Britannica, commentario de miseria carent, et dolorem sensu solum corporeo describunt.