The Principle of Sufficient Reason (PSR) says that all contingent facts must have explanation. In this 2006 volume, which was the first on the topic in the Engl

Kant once famously declared in the Prolegomena that "it was the objection of David Hume that first, many years ago, interrupted my dogmatic slumber." Abraham An

The Principle of Reason, the text of an important and influential lecture course that Martin Heidegger gave in 1955–56, takes as its focal point Leibniz's pri

Renowned for his metaphysics, Spinoza made significant contributions to understanding the human mind, the emotions, moral philosophy, and political philosophy.