The contradiction appears equally when viewed from the side of thought-activity and its characteristic forms. All our knowledge, after all, of thought as constitutive is gained by consideration of the operations of reflective thought. The perfect system of thought is so perfect that it is a luminous, harmonious whole, without definite parts or distinctions--or, if there are such, it is only reflection that brings them out. The categories and methods of constitutive thought itself must therefore be characterized in terms of the _modus operandi_ of reflective thought. Yet the latter takes place just because of the peculiar problem of the peculiar conditions under which it arises. Its work is progressive, reformatory, reconstructive, synthetic, in the terminology made familiar by Kant. We are not only _not_ justified, accordingly, in transferring its determinations over to constitutive thought, but we are absolutely prohibited from attempting any such transfer. To identify logical processes, states, devices, results that are conditioned upon the primary fact of resistance to thought as constitutive with the structure of such thought is as complete an instance of the fallacy of recourse from one genus to another as could well be found. Constitutive and reflective thought are, first, defined in terms of their dissimilarity and even opposition, and then without more ado the forms of the description of the latter are carried over bodily to the former![14] This is not meant for a merely controversial criticism. It is meant to point positively toward the fundamental thesis of these chapters: All the distinctions of the thought-function, of conception as over against sense-perception, of judgment in its various modes and forms, of inference in its vast diversity of operation--all these distinctions come within the thought-situation as growing out of a characteristic antecedent typical formation of experience; and have for their purpose the solution of the peculiar problem with respect to which the thought-function is generated or evolved: the restoration of a deliberately integrated experience from the inherent conflict into which it has fallen.