The document discusses different philosophical views on happiness: 1) Hedonism sees happiness as obtaining as much pleasure as possible. Epicureanism sees it as freedom from pain through moderation of pleasure. Stoicism finds happiness by controlling desires and accepting inevitability of pain. 2) Aristotle believed true happiness is a lasting state where nothing more is desired, not just momentary pleasure. He also thought governments should promote conditions for citizens to achieve happiness. 3) Modern expansions of Aristotle's view link societal institutions and government policies to long-term well-being and happiness of populations.