"I've not yet made up my mind whether the best men for this kind of job are those who do it with passion or those who keep their heads. Some of them are filled with hatred for the people we're up against and when we down them it gives them a sort of satisfaction like satisfying a personal grudge. Of course they're very keen on their work. You're different, aren't you? You look at it like a game of chess and you don't seem to have any feeling one way or the other. I can't quite make it out. Of course for some sort of jobs it's just what one wants."
