 The maxim of this action, says Kant, results in a contradiction in conceivability (and thus contradicts perfect duty).Kant also denied that the consequences of an act in any way contribute to the moral worth of that act, his reasoning being that the physical world is outside one's full control and thus one cannot be held accountable for the events that occur in it.The origins of utilitarianism can be traced back as far as Epicurus, but, as a school of thought, it is credited to Jeremy Bentham, who found that "nature has placed mankind under the governance of two sovereign masters, pain and pleasure"; then, from that moral insight, he derived the "Rule of Utility"