To buy happiness is to sell soul.

The aphorism frames “happiness” as something that cannot be legitimately purchased without moral cost. By pairing the commercial verbs “buy” and “sell,” it suggests a spiritual economy in which material acquisition masquerading as happiness requires surrendering one’s integrity—one’s “soul.” The line critiques consumerist or transactional approaches to fulfillment and implies that authentic happiness depends on values that resist commodification (character, love, conscience, purpose). Its stark, proverb-like structure also functions as a warning: when pleasure or status is pursued as a commodity, the price may be self-betrayal rather than money.