Vronsky’s life was particularly happy in that he had a code of principles, which defined with unfailing certitude what he ought and what he ought not to do. This code of principles covered only a very small circle of contingencies, but then the principles were never doubtful, and Vronsky, as he never went outside that circle, had never had a moment’s hesitation about doing what he ought to do. These principles laid down as invariable rules: that one must pay a cardsharper, but need not pay a tailor; that one must never tell a lie to a man, but one may to