Most of the noted literary men have indulged in the prudent habit of selecting favorite passages for future reference. – Charles F. Schutz, Sayings: Proverbs, Maxims, Mottoes, 1915

A true quotation cannot be divorced from the character who uttered or scribbled it; it should say as much about the person quoted as about the particular subject referred to, and for this reason an anthology of quotations should be a kind of portrait gallery. – Robert Andrews, The Columbia Dictionary of Quotations, “Introduction”

In such a case the writer is apt to have recourse to epigrams. Somewhere in this world there is an epigram for every dilemma. – Hendrik Willem van Loon, The Liberation of Mankind, 1926

Quotation, like much better things, has its abuses. One may quote till one compiles. The ancient lawyers used to quote at the bar till they had stagnated their own cause. – Isaac D’Israeli, “Quotation,” A Second Series of Curiosities of Literature