
Moral duty springs from four cardinal virtues rooted in nature
Human reason separates citizens from beasts by driving a search for truth, social fellowship, grandeur of spirit, and order. Duty arises from wisdom, justice, fortitude, and decorum, with justice requiring that no one harm another unless provoked by injury. Property becomes private through long occupancy, victory in war, or legal covenant, yet private ownership must still serve the common welfare. Decorum demands that actions fit an individual's distinct character and age, making self-knowledge essential for principled conduct.

