But further, in order to embellish it with flowers of language and gems of thought, it is not necessary for this ornamentation to be spread evenly over the entire speech, but it must be so distributed that there may be brilliant jewels placed at various points as a sort of decoration. – Cicero, De oratore

In these circumstances I think we must take the bull by the horns… and, making due allowances, quote whenever we feel that the allusion is interesting or helpful or amusing. – Clifton Fadiman, c.1955

What gems of painting or statuary are in the world of art, or what flowers are in the world of nature, are gems of thought to the cultivated and thinking. – Attributed to Oliver Wendell Holmes in Excellent Quotations for Home and School

Luminous quotations, also, atone, by their interest, for the dulness of an inferior book, and add to the value of a superior work by the variety which they lend to its style and treatment. – Christian Nestell Bovee, “Quoters and Quoting,” Institutions and Summaries of Th