Dudley Clarke was always clear—and a little later it will be shewn to have been a pity that others were not equally so—that you can never, by deception, persuade an enemy of anything not according with his own expectations, which usually are not far removed from his hopes. It is only by using your knowledge of them that you are able to hypnotize him, not just into thinking, but doing what you want. MASTER OF DECEPTION, DAVID MURE, 1980
