Critique of Pure Reason

Metaphysicians have for centuries attempted to clarify the nature of the world and how rational human beings construct their ideas of it. Materialists believed that the world (including its human component) consisted of objective matter, an irreducible substance to which qualities and characteristics could be attributed. Mindthoughts, ideas, and perceptionswas viewed as a more sophisticated material substance. Idealists, on the other hand, argued that the world acquired its reality from min...