Spinoza’s political philosophy proceeds from the idea, also found in Hobbes, that political ends, or goals, should be derived from understanding human nature such as it is, and not as it should or could be. This fundamental starting point can be contrasted with a utopian tradition of political philosophy emblematic, for example, in Plato’s Republic and the early writings of Karl Marx. While utopian political philosophers argue that correct political institutions can transform human nature into something more desirable or virtuous than its current state, Spinoza instead commences with a contrarian conviction, by and large rejecting such a possibility. This conviction proceeds from Spinoza’s interpretation of human nature.