This, therefore, is a law not found in books, but written on the fleshly tablets of the heart, which we have not learned from man, received or read, but which we have caught up from Nature herself, sucked in and imbibed; the knowledge of which we were not taught, but for which we were made; we received it not by education, but by intuition.
What is morally wrong can never be advantageous, even when it enables you to make some gain that you believe to be to your advantage. The mere act of believing that some wrongful course of action constitutes an advantage is pernicious.
This is the part of a great man, after he has maturely weighed all circumstances, to punish the guilty, to spare the many, and in every state of fortune not to depart from an upright, virtuous conduct.