Page:Collected Works of Dugald Stewart Volume 1.djvu/27

Rh judge, whether the objections which I am now to state to the foregoing extracts be as sound and decisive as I apprehend them to be.

Of these objections a very obvious one is suggested by a consideration, of which D'Alembert himself has taken notice,—that the three faculties to which he refers the whole operations of the understanding are perpetually blended together in their actual exercise, insomuch that there is scarcely a branch of human knowledge which does not, in a greater or less degree, furnish employment to them all. It may be said, indeed, that some pursuits exercise and invigorate particular faculties more than others; that the study of History, for example, although it may occasionally require the aid both of Reason and of Imagination, yet chiefly furnishes occupation to the Memory; and that this is sufficient to justify the logical division of our mental powers as the ground-work of a corresponding Encyclopedical classification. This, however, will be found more specious than solid. In what respects is the faculty of Memory more essentially necessary to the student of history than to the philosopher or to the poet; and, on the other hand, of what value, in the circle of the sciences, would be a collection of historical details, accumulated without discrimination, without a scrupulous examination of evidence, or without any attempt to compare and to generalize? For the cultivation of that species of history, in particular, which alone deserves a place in the Encyclopedical Tree, it may be justly affirmed, that the rarest and most comprehensive combination of all our mental gifts is indispensably requisite.

Another, and a still more formidable objection to Bacon's