David Hume's jurisprudence in the Treatise of Human Nature (1738–1740) is shaped by three converging features: anti-rationalism, anti-contractarianism, and (to use Hume's own term) "conventionalism." Hume's anti-rationalism makes him deeply suspicious of latter-day demi-Platonists such as Leibniz and Malebranche, who share Plato's belief in Phaedo and Meno that all "absolute ideas' (including moral and jurisprudential ones) are reason-given "eternal verities' which are geometrically demonstrable.