accept suicide, indifference to the welfare of others, false promises, and the neglect of one’s talents, although both formulations are independent. This type of practical equivalent thesis is what I term the weak version of equivalence because at first glimpse there is no conceptual relation between the two formulations. However, Kant goes on to develop another version of equivalence noting a conceptual relation between the two formulations. By unpacking possible translations of the terms, the one formulation can be seen, although perhaps not at first consideration, as an explication of the other; this I refer to as the strong version of equivalence. This strong version is much closer to complementary Kantian ethics given the theoretical unity that emerges in the Groundwork, which practical equivalence does not achieve. While Kant prefers that all things being considered, the stronger thesis is preferred, this position seems initially hard to maintain. …show more content…
Later Kant proposes a version of CI1, CI1A (‘bare’ CI1) which states: ‘‘Act as if the maxim of your action were to become through your will a universal law of nature’’ (Gr.421). Although since Kant sees nature as a set of laws, it seems at first glimpse that this revision is of little worth, especially as Kant uses the CI1A in illustrations in both the Second Critique and the Metaphysics of Morals. Why, then, does Kant revise the formulation of the universal law in the Groundwork? He does so because as he relies on CI1A he reuses the analogy with natural law introduced in the First Critique as he explores a series of illustrations. In the Groundwork, Kant lists four illustrations to show the practical sense of the moral law: Suicide, lying and breaking promises, developing one’s talents and helping others: Suicide: A man who wants to commit suicide but questions if this goes against a duty to