The man whose book is filled with quotations, may be said to creep along the shore of authors, as if he were afraid to trust himself to the free compass of reasoning. – Quoted unattributed in The Universal Magazine of Knowledge and Pleasure, April 1

A profusion of fancies and quotations is out of place in a love-letter. True feeling is always direct, and never deviates into by-ways to cull flowers of rhetoric. – Christian Nestell Bovee, Intuitions and Summaries of Thought: Vol.II, 1862

The reader, however, is warned not to be too sure that the author of any quotation had in mind the subject to which it is applied here. – Katharine B. Wood, “Preface,” Quotations for Occasions, 1896 [Confessional discl

The quotation-business is booming. No subdivision of the culture seems too narrow to have a quotation book of its own…. It would be an understatement to say that these books lean on one another. To compare them is to stroll through a glorious jungle of incestuous mutual plagiarism. – James Gleick, 1993