S. Austin Allibone, comp. Prose Quotations from Socrates to Macaulay. 1880.
Invention
Invention is a kind of muse, which, being possessed of the other advantages common to her sisters, and being warmed by the fire of Apollo, is raised higher than the rest.
Invention, strictly speaking, is little more than a new combination of those images which have been previously gathered and deposited in the memory. Nothing can be made of nothing: he who has laid up no materials can produce no combinations.