And the second is like, namely this, You shall love your neighbor as yourself. There is no other commandment greater than these.
All Commentaries on Mark 12:31 Go To Mark 12
Augustine of Hippo
AD 430
This virtue consists in nothing else but in loving what is worthy of love; it is prudence to choose this, fortitude to be turned from it by no obstacles, temperance to be enticed by no allurements, justice to be diverted by no pride. Why do we choose what we exclusively love, except that we find nothing better? But this is God, and if we prefer or equate any creature with God, we know nothing about loving ourselves. We are made better by approaching closer to him than whom nothing is better. We go to him not by walking, but by loving. We will have him more present to us in proportion as we are able to purify the love by which we draw near to him, for he is not spread through or confined by corporeal space; he is everywhere present and everywhere wholly present, and we go to him not by the motion of our feet but by our conduct. Conduct is not usually discerned by what one knows but by what one loves; good or bad love makes good or bad conduct. Letter , To Macedonius.