All quotation dictionaries stand on the shoulders of their predecessors, which must be consulted as part of the effort to make sure that no famous quotations are missed. – Fred R. Shapiro, The Yale Book of Quotations, 2006 (Acknowledgements)

…the taste of the finely-worded truth rolled upon the tongue as its thought is revolved in the mind. – William Francis Henry King, “Introduction,” Classical and Foreign Quotations, 18

The wise men of old have sent most of their morality down the stream of time in the light skiff of apothegm or epigram; and the proverbs of nations, which embody the commonsense of nations, have the brisk concussion of the most sparkling wit. – Edwin P. Whipple, lecture delivered before the Boston Mercantile Library Associa

Collections of gnomes, adages, sayings, and parables have been made from times immemorial in all countries and in all languages possessing some kind of literature. – E.H. Michelsen, A Manual of Quotations from the Ancient, Modern, and Oriental La