There is one alone, then, who from the beginning was free of concupiscence—the philanthropic Lord, who for us became man. And whosoever endeavour to be assimilated to the impress given by Him, strive, from exercise, to become free of concupiscence. For he who has exercised concupiscence and then restrained himself, is like a widow who becomes again a virgin by continence. Such is the reward of knowledge, rendered to the Saviour and Teacher, which He Himself asked for,—abstinence from what is evil, activity in doing good, by which salvation is acquired.