The three theological virtues are faith, hope, and charity (love).
Unlike the cardinal virtues, which can be practiced by anyone, the theological virtues are gifts of grace from God, and the object of the virtues—what the practice of the virtue aims at—is God Himself.
The following is from: http://en.wikipedia.org/wiki/Theological_virtues
The three theological virtues are:
Hope - expectation of and desire of receiving; refraining from despair and capability of not giving up. The belief that God will and forever be eternally present in every human's life and never giving up on His love.
Charity - a supernatural virtue that helps us love God and our neighbors, more than ourselves.
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.
More than one vice can be the opposite of each theological virtue:
Lack of hope may give place to despair or cynicism.