Second we must recognize that the evil deed of the enemy-neighbor, the thing that hurts, never quite expresses all that he is. An element of goodness may be found even in our worst enemy. Each of us is something of a schizophrenic personality, tragically divided against ourselves. A persistent civil war rages within all or our lives. Something within us causes us to lament with Ovid, the Latin poet, "I see and approve the better things, but follow the worse," or to agree with Plato that human personality is like a charioteer having two headstrong horses, each wanting to be go in a different direction, or to repeat with the Apostle Paul, "The good that I would I do not, but the evil which I would not, I do."
Loving Your Enemies (Christmas 1957)