True serenity [according to Epicurus] consists in the joyous recognition that one is living the style of life most suitable to human nature—calm, simple and impeded neither by runaway desires nor by serious distresses of body or mind.
(Geoffrey Scarre, "Epicurus as a Forerunner of Utilitarianism," Utilitas 6 [November 1994]: 219-31, at 225)
