apothegm (n.) Look up apothegm at Dictionary.com
"short, pithy, instructive saying," 1550s, from Greek apophthegma "terse, pointed saying," literally "something clearly spoken," from apophthengesthai "to speak one's opinion plainly," from apo "from" (see apo-) + phthengesthai "to utter" (see diphthong). See aphorism for nuances of usage. Spelling apophthegm, restored by Johnson, is "now more frequent in England," according to OED (1989). Related: Apothegmatic.