III. The World as Illusion

The belief that the true nature of things is unknowable is also maintained by Herbert Spencer. He proceeds by asking: How do I obtain what I call truths concerning the world? I make certain observations concerning things and form judgments about them. I observe that hydrogen and oxygen under certain conditions combine to form water. I form a judgment concerning this observation. This is a truth that extends only over a small circle of things. I then observe under what circumstances other substances combine. I compare the individual observations and thereby arrive at more comprehensive, more general truths concerning the process in which substances in general form chemical compounds. All knowledge consists in this; we proceed from particular truths to more comprehensive ones. We finally arrive at the highest truth, which cannot be subordinated to any other and which we therefore must accept without further explanation. In this process of knowledge we have, however, no means of penetrating to the absolute essence of the world, for thinking can, according to this opinion, do no more than compare the various things with one another and formulate general truths with respect to the homogeneous element in them. But the ultimate nature of the world cannot, because of its uniqueness, be compared to any other thing. This is why thinking fails with regard to the ultimate nature. It cannot reach it.