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).