Known sourcecanonical
"Said Periander, "Hesiod might as well have kept his breath to cool his pottage.""
Plutarch / The Banquet of the Seven Wise Men. 14.
Bartlett's Familiar Quotations, 9th ed. (Little, Brown, 1905), public domain
Bartlett's Familiar Quotations, 9th ed. (Little, Brown, 1905), public domain