Good copy can't be written with tongue in cheek, written just for a living. You've got to believe in the product.
David OgilvyThe only marketers who know what the hell they're doing are those who have worked in sales
David OgilvySupposing you've got an acute appendicitis. You've got to be operated on tonight. Would you like to have a surgeon who's read some books of anatomy and knows how to do that operation - or would you prefer to have a surgeon who refused to read all books about anatomy and relied on his own instinct?
David Ogilvy