Ayn Rand controversially defended rational egoism, the idea that people should regard their own happiness as their highest goal. Given that numerous scholars in philosophy and psychology alike are examining the nature of human flourishing and an ethics of well-being, the time is ripe for a close examination of Rand’s theory. Egoism Without Permission illuminates Rand’s thinking about how to practice egoism by exploring some of its crucial psychological dimensions. Tara Smith examines the dynamics among four partially subconscious factors in an individual’s well-being: a person’s foundational motivation for being concerned with morality; their attitude toward their desires; their independence; and their self-esteem. A clearer grasp of each, Smith argues, sheds light on the others, and a better understanding of the set, in turn, enriches our understanding of self-interest and its sensible pursuit.  Smith then traces the implications for a broader understanding of what a person’s self-interest genuinely is, and, correspondingly, of what its pursuit through rational egoism involves. By highlighting these previously underexplored features of Rand’s conceptions of self-interest and egoism, Smith betters our understanding of how vital these psychological levers are to a person’s genuine flourishing.