“We can think of matter only in terms of mind. We can think of mind only in terms of matter. When we have pushed our explorations of the first to the uttermost limit, we are referred to the second for final answer; and when we have got the final answer of the second, we are referred back to the first for an interpretation of it.” Thus is he compelled to revolve in a circular process which makes the knowledge of mind depend on the knowledge of matter, and _vice versâ_. How admirably does the scholastic theory of the origin of thought dissipate the clouds which befog Mr. Spencer throughout this discussion, and prevent him from seeing to what consequences he blindly drifts! The unseen, the unfelt, the unheard are each and all absolutely nothing, so that sense alone can determine reality. Such is the philosophy of Mr. Spencer; and there can be no wonder that upon an analysis of premises he finds that, having set out from nothing, he lands upon the same unreal shore. Scholasticism――the philosophy which at the present time is returning into unexpected though much deserved vogue, superseding in the highest intellectual circles the tenuity of Kant’s unrealism and the sensism of Locke and Condillac――proposes an explanation of the relation of the external world to the intellect through the medium of the senses, which cannot but elicit the endorsement of every logical mind. Just at the point where Spencer modifies his subjective sensible impression received from the external world, in such a manner that he can find nothing corresponding to it outside of himself, the scholastic supposes the active intellect to seize this phantasm or sensible image, and, having so far divested it of its sensible qualities as to fit it to become the object of pure cognition, offers it to the mind cognitive for such cognition, which, as the true cognitive faculty, pronounces it to be the type or exemplar of the object, and this he calls the _verbum mentis_, or idea of the thing. The created light of our intellect, which is itself a participation in the uncreated divine light, enables us to see and judge of what is exhibited to it through the organs of sense, surveying it, measuring it, and penetrating its general essence so far as to be able to perceive that it is the spiritualized resemblance of the object which primarily produced the sensation.