In the course of many centuries a few laborsaving devices have been introduced into the mental kitchen — alcohol, coffee, tobacco, Benzedrine, etc. — but these are very crude, constantly breaking down, and liable to injure the cook. Literary composition in the twentieth century A. D. is pretty much what it was in the twentieth century B. C.: nearly everything has still to be done by hand.

"Writing", p. 17 - The Dyer's Hand, and Other Essays (1962)