Make yourself an honest man, and then you may be sure there is one less rascal in the world.
Thomas CarlyleThere's one way to find out if a man is honest - ask him. If he says, 'Yes,' you know he is a crook.
Groucho MarxAdversity is the trial of principle. Without it a man hardly knows whether he is honest or not.
Henry FieldingThere's one way to find out if a man is honest: ask him; if he says yes, you know he's crooked.
Mark Twain