 James’s “radical empiricism” is distinct from his “pure experience” metaphysics. It is never precisely defined in the Essays, and is best explicated by a passage from The Meaning of Truth where James states that radical empiricism consists of a postulate, a statement of fact, and a conclusion. The postulate is that “the only things that shall be debatable among philosophers shall be things definable in terms drawn from experience,” the  fact is that relations are just as directly experienced as the things they relate, and the conclusion is that “the parts of experience hold together from next to next by relations that are themselves parts of experience” (MT, 6–7).