This, then, requires some power to perfect the intellect in its specification, such that necessary means are seen to be necessary by the rational relation they bear to the ultimate end. This is practical reason perfected by the virtue of prudence. From the side of the other person to whom the debt is owed, freedom means that the free person has dominion over his acts and thus owns them. As ordered to an ultimate end, a person is owed the right to pursue that end, the end of his own perfection. Thus a person's own end, which is his right to pursue, is in his attaining final beatitude in the vision of God.
Persons act for their own sakes by acting according to reason, and reason reflects reality.
Reality, in its turn, reflects God's Wisdom as his providence has ordains things to be for his own sake. And so in conforming to reality, the person conforms to the good will of God that orders reality. That the will has been ordered to operate according to rational knowledge at once relates its operations to reality and relates the person to him who so ordered it, i.e. to God. Thus God who has made persons act for their own sakes, makes them to act freely according to rational knowledge and love of universal goodness. And this universal goodness is God himself.