Original Thought Quotes
Attributed to Diogenes of Sinope in "Let a simile be your umbrella" by William Safire (p. 364), 2001.
A facility for quotation covers the absence of original thought.
"Gaudy Night". Book by Dorothy L. Sayers, 1936.
"In the Shadow of Tomorrow". Book by Johan Huizinga, Ch. 2, 1936.
H.L. Mencken (2013). “Minority Report”, p.20, Knopf
John Stuart Mill (1858). “A System of Logic, Ratiocinative and Inductive: Being a Connected View of the Principles of Evidence and the Methods of Scientific Investigation”, p.426