A Discourse on a Subject Proposed by the Academy of Dijon

What Is the Origin of Inequality Among Men, and Is It Authorised by Natural Law?

Non in depravatis, sed in his qua bene secundum naturam
se habent, considerandum est quid sit naturale.

Aristotle, Politics, Bk. i, ch. 2.

[We should consider what is natural not in things which are depraved but in those which are rightly ordered according to nature.]