Gustave Flaubert (1821 - 1880) was a French novelist, best known as the author of "Madame Bovary".
The epigraphs at the heads of chapters (publishers love those little things) were researched and inserted by Peter Occhiogrosso -- I mention this because I wouldn't want anybody to think I sat around reading Flaubert, Twitchell and Shakespeare all day.
Quoted in The Real Frank Zappa Book:
Be regular and orderly in your life so that you may be violent and original in your work.
One becomes a critic when one cannot be an artist, just as a man becomes a stool pigeon when he cannot be a soldier.