Proverbs accordingly are somewhat analogous to those medical Formulas which, being in frequent use, are kept ready-made-up in the chemists’ shops, and which often save the framing of a distinct Prescription. – Richard Whately, Elements of Rhetoric

I doubt whether Cromwell or Milton could have rivaled [William Lloyd] Garrison in this field of quotation; and the power of quotation is as dreadful a weapon as any which the human intellect can forge. – John Jay Chapman

But I have long thought that if you knew a column of advertisements by heart, you could achieve unexpected felicities with them. You can get a happy quotation anywhere if you have the eye. – Oliver Wendell Holmes, Jr., 1923, quoted in Holmes-Laski Letters: The Correspond

Idly curious race of grammarians, ye who dig up by the roots the poetry of others; unhappy bookworms that walk on thorns, defilers of the great… away with you, bugs that bite secretly the eloquent. – Antiphanes of Macedonia, in The Greek Anthology, Volume IV, “Book XI: The Conviv