Why can’t somebody give us a list of things that everybody thinks and nobody says, and another list of things that everybody says and nobody thinks?

Oliver Wendell Holmes, Sr. (1809–1894) American poet, essayist, scholar

Article (1859-06), “The Professor at the Breakfast-Table,” Atlantic Monthly
    (Source)

Collected in The Professor at the Breakfast-Table, ch. 6 (1859).