At some time in their lives, most people pause to reflect on their own moral principles and on the practical implications of those principles, and they sometimes think about what principles people should have or which moral standards can be best justified. When a person accepts a moral principle, naturally the person believes the principle is important and well justified. But there is more to moral principles than that. When a principle is part of a person’s moral code, that person is strongly motivated toward the conduct required by the principle, and against behavior that conflicts with that principle. The person will tend to feel guilty when his or her own conduct violates that principle and to disapprove of others whose behavior conflicts with it. Likewise, the person will tend to hold in esteem those whose conduct shows an abundance of the motivation required by the principle.