I enjoy collecting quotations. When I find a choice one I pounce on it like a lepidopterist. My day is made. When I lose one because I did not copy it out at once I feel bereft. – R.I. Fitzhenry, preface to The David & Charles Book of Quotations, September 198

Nevertheless, a maxim does not necessarily become a proverb. Many grubs never grow to butterflies; and a maxim is only a proverb in its caterpillar stage—a candidate for a wider sphere and longer flight than most are destined to attain. – “Proverbs Secular and Sacred,” The North British Review, February 1858

Some lines are born quotations, some are made quotations, and some have “quotation” thrust upon them. – Gary Saul Morson, The Words of Others: From Quotations to Culture, 2011