Mark Twain,
Tom Sawyer Abroad — Chapter 10
(1894)
“ I reckon there's lots of people like that dervish. They swindle right and left, but they always make the other person seem to swindle himself. They keep inside of the letter of the law all the time, and there ain't no way to git hold of them. They don't put the salve on—oh, no, that would be sin—but they know how to fool you into putting it on, then it's you that blinds yourself. I reckon the dervish and the camel driver was just a pair—a fine, smart, brainy rascal, and a dull, coarse, ignorant one, but both of them rascals, just the same. ”
