Juvenal describes such an example in a climax which makes the reader feel vividly the force of the spring that is contained in the pure law of duty, as duty: {PART_2|METHODOLOGY ^paragraph 15} Esto bonus miles, tutor bonus, arbiter idem Integer; ambiguae si quando citabere testis Incertaeque rei, Phalaris licet imperet ut sis Falsus, et admoto dictet periuria tauro, Summum crede nefas animam praeferre pudori, {PART_2|METHODOLOGY ^paragraph 20} Et propter vitam vivendi perdere causas. * * [Juvenal, Satirae, "Be you a good soldier, a faithful tutor, an uncorrupted umpire also; if you are summoned as a witness in a doubtful and uncertain thing, though Phalaris should command that you should be false, and should dictate perjuries with the bull brought to you, believe it the highest impiety to prefer life to reputation, and for the sake of life, to lose the causes of living."] When we can bring any flattering thought of merit into our action, then the motive is already somewhat alloyed with self-love and has therefore some assistance from the side of the sensibility. But to postpone everything to the holiness of duty alone, and to be conscious that we can because our own reason recognises this as its command and says that we ought to do it, this is, as it were, to raise ourselves altogether above the world of sense, and there is inseparably involved in the same a consciousness of the law, as a spring of a faculty that controls the sensibility; and although this is not always attended with effect, yet frequent engagement with this spring, and the at first minor attempts at using it, give hope that this effect may be wrought, and that by degrees the greatest, and that a purely moral interest in it may be produced in us. {PART_2|METHODOLOGY ^paragraph 25}