A case which commonly happens with us in London, as well as our Neighbours in Paris, where if a Witty Man starts a happy thought, a Million of sordid Imitators ride it to death. – Thomas Brown, Laconics: Or, New Maxims of State and Conversation

Perish the men who said our good things before us! – Aelius Donatus, quoted in Edge-Tools of Speech by Maturin M. Ballou, 1886

I fancy mankind may come, in time, to write all aphoristically, except in narrative; grow weary of preparation, and connection, and illustration, and all those arts by which a big book is made. – Samuel Johnson, quoted in The Journal of a Tour to the Hebrides, with Samuel Joh

…I didn’t do anything that can properly be called research; rather, I proceeded by the methodless method of “determined browsing”— – Rudolf Flesch, on collecting excerpts for The Book of Unusual Quotations, 1957