The first formulation is the principle of coherence “always act according to the maxim you can follow at the same time act as you act according to a universal law”. The second is the principle of humanity. This is to say “always act in a way that treats humanity, whether in your own person or in that of others, as an end and never just as a means.” Finally, the third formulation is the principle of autonomy. This suggests “always acting in such a way that the will can be considered a universal legislator”. These formulations are subsections of the categorical imperative, as we learned earlier in the article; the categorical imperative is described as “commanding that some action be necessary in and of itself”