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

He picked something out of everything he read. – Pliny

Say what you want without saying it yourself: quote. Very useful, this, sometimes lovely, and versatile, too: big thoughts in small pieces, neatly wrapped and bundled in bulk, in different flavors for different tastes. – Willis Goth Regier, Quotology, 2010

Whoever reads only to transcribe or quote shining remarks without entering into the genius and spirit of the author, will be apt to be misled out of a regular way of thinking, and the product of all this will be found to be a manifest incoherent piece of patchwork. – Attributed to Swift in A Dictionary of Thoughts, Being a Cyclopedia of Laconic Q