Not everything that can be extracted appears in anthologies of quotations, in commonplace books, or on the back of Celestial Seasonings boxes. Only certain sorts of extracts become quotations. – Gary Saul Morson, The Words of Others: From Quotations to Culture, 2011

The lips of the wise are as the doors of a cabinet; no sooner are they opened, but treasures are poured out before thee. Like unto trees of gold arranged in beds of silver, are wise sentences uttered in due season. – The Economy of Human Life, Translated from an Indian Manuscript, Written by an A

Aphorisms are essentially an aristocratic genre of writing. The aphorist does not argue or explain, he asserts; and implicit in his assertion is a conviction that he is wiser and more intelligent than his readers. – W. H. Auden

[D]ifferent people have different quotational gravity. – Willis Goth Regier, Quotology, 2010