Aphorism, n.: A concise, clever statement you don’t think of until too late. – James Alexander Thom

Dr. Richard Bentley (1662-1742)… is said one day, on finding his son reading a novel, to have remarked—’Why read a book that you cannot quote?’— a saying which affords an amusing illustration of the nature and object of his literary studies. – Cyclopædia of English Literature edited by Robert Chambers, 1844

I wonder if “an” ever occurs before “haughty” except in a quotation, or whether you can make anything sound like a quotation by adding a word like “goeth”? – Gary Saul Morson, The Words of Others: From Quotations to Culture, 2011