A person who fails to meet a perfect duty has done something wrong. Kant argues that all people have a perfect duty to act in such a way that their actions could be universalized and no logical contradiction would occur. In other words, actions should not be relative to the person performing them and in order to be judged good, must be such that, if everyone performed them, harm would not result and there would not be logical contradictions between the actions of people or groups of people.