The True Intellectual System of the Universe: The First Part: Wherein All the Reason and Philosophy of Atheism Is Confuted and its Impossibility Demonstrated

Ralph Cudworth's The True Intellectual System of the Universe (1678) is a philosophical work aimed at refuting atheism and demonstrating its impossibility. Cudworth, a prominent figure in Cambridge Platonism, sought to establish a rational foundation for the existence of God and a moral framework based on immutable principles, rather than solely on divine will or secular authority.12

The work's first part, published during his lifetime, focused on confuting atheistic arguments. While only fragments of the subsequent parts, which were intended to cover morality and free will, survive, Cudworth's ethical theories emphasize the inherent nature of good and evil, suggesting that "Things are what they are, not by Will but by Nature". This approach contrasts with views that reduce morality to divine command or political obedience.12