Samuel Johnson, Life of John Dryden
There are men whose powers operate only at leisure and in retirement, and whose intellectual vigour deserts them in conversation; whom merriment confuses, and objection disconcerts; whose bashfulness restrains their exertion, and suffers them not to speak till the time of speaking is past; or whose attention to their own character makes them unwilling to utter at hazard what has not been considered, and cannot be recalled.
George Eliot, Felix Holt the Radical
(1866), chapter 16:
Comprehensive talkers are apt to be tiresome when we are not athirst for information, but, to be quite fair, we must admit that superior reticence is a good deal due to the lack of matter. Speech is often barren; but silence also does not necessarily brood over a full nest. Your still fowl, blinking at you without remark, may all the while be sitting on one addled nest-egg; and when it takes to cackling, will have nothing to announce but that addled delusion.
I like to think my reticence resembles the former type, but I fear it really resembles the latter.