While the classical Greco-Roman tradition is not ordinarily thought of as associated with radical individualism, many of the central concerns of such radical individualists as Frédéric Bastiat, Herbert Spencer, Benjamin Tucker, Ludwig von Mises, F. A. Hayek, and Ayn Rand—including their views on human sociality, spontaneous order, and the relation between self-interest and non-instrumental concern for others—are shown to be inheritances from and developments of Platonic, Aristotelian, Epicurean, and Stoic ideas. Hence those working in the classical tradition have reason to explore the radical individualist tradition and vice versa.