Deontological theories reject consequences as the basis of right and wrong and instead, focus on a person’s duty to act or not to act in certain sorts of ways. It also emphasizes the morality of a person’s motives and intentions. One of the most influential deontological theories is that of Kant’s. Kant’s theory depends on reason and is a version of rationalism. He argues that no consequence can have fundamental moral worth and that the only thing that is good in and of itself is goodwill. The goodwill freely chooses to do its moral duty, which is dictated solely by reason.