VII. Are There Limits to Knowing?

For naive realism the real world is a sum of objects of perception; for metaphysical realism, reality is also ascribed to the unperceivable forces, as well as to perceptions; monism replace the forces with the ideal connections which it gains through thinking. Such connections, however, are the laws of nature. A law of nature is indeed nothing more than the conceptual expression for the connection between certain perceptions.