"As to the body of man, we find many and strange experiences how nature is overwrought by custom, even in actions that seem of most difficulty, and least possible." Bacon's Discourse Touching Helps for the Intellectual Powers
"I forbid my tears : but yet
It is our trick : nature her custom holds,
Let shame say what it will.--Hamlet iv. 7.
"Julio Romano, who had he himself eternity, and could put breath into his work, would beguile nature of her custom."--Winter's Tale v. 2
SirBacon.org - Sir Francis Bacon's New Advancement of Learning