Rational egoism is a philosophical theory that suggests individuals should act in their own self-interest, as long as their actions are based on reason. It posits that pursuing one's own happiness and well-being is not only natural but also morally justified. This perspective emphasizes that rational decision-making leads to better outcomes for oneself and, indirectly, for society. Proponents of rational egoism argue that when individuals prioritize their own needs, they contribute to overall social progress. This idea contrasts with altruism, where selfless concern for others is emphasized. Notable figures associated with rational egoism include the philosopher Ayn Rand, who advocated for this approach in her works.