A quote
Young men, indeed, must sometimes have free play to follow their impulses, but it should only be at times when they act from impulse, and when they cannot force themselves to be silent. Such praise as that gives a certain kind of encouragement to the hearers themselves, and acts as a spur to the youthful mind. But let them be roused to the matter, and not to the style; otherwise, eloquence does them harm, making them enamoured of itself, and not of the subject.
Seneca·Letter 52 — On Choosing Our Teachers (§14)·trans. Gummere