Chapter 69

several works on metaphysics may be misled by a certain superficial similarity that is apt to obtain among them. One sees the field mapped out into Ontology (the science of Being or Reality), Rational Cosmology, and Rational Psychology. These titles are mediaeval landmarks which have been left standing. I may as well warn the reader that two men who discourse of Ontology may not be talking about the same thing at all. Bear in mind what was said in section 57 of the different ways of conceiving the "One Substance"; and bear in mind also what was said in Chapter V of the proper meaning of the word "reality."

I have discarded the above titles in my "System of Metaphysics," because I think it is better and less misleading to use plain and unambiguous language.

Section 75. See the note to Chapter XVI.