Drawing on my fine command of language, I said nothing. – Attributed to Robert Benchley by Evan Esar in 1949, however a similar saying alr

There is no such thing as conversation. It is an illusion. There are intersecting monologues, that is all. – Rebecca West, “There is No Conversation,” 1934

Well-timed silence hath more eloquence than speech. – Martin Farquhar Tupper, “Of Discretion,” Proverbial Philosophy

Among provocatives, the next best thing to good preaching is bad preaching. I have even more thoughts during or enduring it than at other times. – Ralph Waldo Emerson