“First Proposition: Darwinism supports the conservative view of ordered liberty as rooted in natural desires, customary traditions, and prudential judgments. In Chapter 1, I will argue that a Darwinian account of social order requires a nested hierarchy of three kinds of order—natural order, customary order, and rational order—so that custom is constrained by nature, and reason is constrained both by custom and by nature. For a society of ordered liberty to succeed, it must satisfy the desires of human nature as shaped by genetic evolution, it must be sustained by the customs of human history as shaped by cultural evolution, and it must be promoted by the judgments of human reason as shaped by prudential deliberation.”