Not because it is a great thing, to distinguish consonants from vowels, and afterwards divide them into semivowels and mutes; but because, to those who enter the interior parts of this temple of science, there will appear in many things a great subtilty, which is fit not only to sharpen the wits of youth, but also to exercise the loftiest erudition and science."-- _De Institutione Oratoria_, Lib.

i, Cap.

iv.
16.

Again, of the arts which spring from the composition of language.

Here the art of logic, aiming solely at conviction, addresses the understanding with cool deductions of unvarnished truth; rhetoric, designing to move, in some particular direction, both the judgement and the sympathies of men, applies itself to the affections in order to persuade; and poetry, various in its character and tendency, solicits the imagination, with a view to delight, and in general also to instruct.