136. Some examples will illustrate the nature of conscience. If someone has in his possession someone else's goods, without the owner's knowledge, so that he can enjoy them without fear of legal action or losing his honours or reputation, but still gives them back to the other person, because they are not his, such a person has a conscience. For he does good for good's sake and justice for justice's sake. There may also be someone who could claim an office, but knows that some other candidate is more useful to his country; if he yields place to the other for his country's good, he has a good conscience; and so on in other cases.