In his book On the Morals of the Catholic Church, Augustine reinterpreted the classical virtues through the distinctly Christian lens of love:
I hold that virtue is nothing other than the perfect love of God. Now, when it is said that virtue has a fourfold division, as I understand it, this is said according to the various movements of love…We may, therefore, define these virtues as follows: temperance is love preserving itself entire and incorrupt for God; courage is love readily bearing all things for the sake of God; justice is love serving only God, and therefore ruling well everything else that is subject to the human person; prudence is love discerning well between what helps it toward God and what hinders it.
Augustine of Hippo, On the Morals of the Catholic Church
