David Hume argues against Plato’s theory of motivation by opposing reasons use. Plato argues that reason is one of the three parts of the soul that motivates our decisions. He justifies this by asserting that we undergo internal conflict when making decisions, and that the same thing cannot undergo contraries at the same time. If this is true we must be composed of different motivational parts. Hume acknowledges this by saying “Nothing is more usual in philosophy, and even in common life, than to talk of the combat of passion and reason”. Though he acknowledges that we undergo contraries, he does not believe that reason is a motive of our soul. Hume justifies his claim by examining what reason is. He argues that reason is comprised of two