In Catholic theology, it is held that these virtues differ from the cardinal virtues in that they can not be obtained by human effort. A person can only receive them by their being "infused"—through Divine grace—into the person.
The Theological Virtues are so named because the object of these virtues is the divine being (theos). Other virtues have vice at their extremes, and are only virtues when they are maintained between these extremes. In the case of the Theological Virtues, they do not contribute to vice at the positive extreme; that is, there is no vice in having an unlimited amount of faith, hope, or love, when God is the object of that virtue.