We prefer to think that the absence of inverted commas guarantees the originality of a thought, whereas it may be merely that the utterer has forgotten its source. – Clifton Fadiman, The American Treasury, 1455-1955, 1955

The ability to quote is a serviceable substitute for wit. – Attributed to W. Somerset Maugham

Collections of gnomes, adages, sayings, and parables have been made from times immemorial in all countries and in all languages possessing some kind of literature. – E.H. Michelsen, A Manual of Quotations from the Ancient, Modern, and Oriental La

Apothegms to thinking minds are the seeds from which spring vast fields of new thought, that may be further cultivated, beautified, and enlarged. – Ramsay, as quoted in A Dictionary of Thoughts: A Cyclopedia of Laconic Quotation