There are three basic types of human personality. The first type governs his or her life and reactions mainly with reason. The second type does so mainly with emotion, and the third does so with the will. In other words, the three personality types are dominated by reason, by emotion, and by will. In your self-search it will be useful for you to find out which type you are. A personality is never completely one-sided; every person is a mixture of types, but one is always predominant. In some cases, the predominance is obvious; in others, the mixture is more complicated, and therefore the predominant type is more difficult to detect.