 Kant thought that the only way to resolve this apparent conflict is to distinguish between phenomena, which is what we know through experience, and noumena, which we can consistently think but not know through experience. Our knowledge and understanding of the empirical world, Kant argued, can only arise within the limits of our perceptual and cognitive powers. We should not assume, however, that we know all that may be true about “things in themselves,” although we lack the “intellectual intuition” that would be needed to learn about such things.