ST. BASIL OF CAESAREA
To Eustathius the physician.
Humanity is the regular business of all you who practise as physicians. And, in my opinion, to put your science at the head and front of life's pursuits is to decide reasonably and rightly. This at all events seems to be the case if man's most precious possession, life, is painful and not worth living, unless it be lived in health, and if for health we are dependent on your skill. In your own case medicine is seen, as it were, with two right hands; you enlarge the accepted limits of philanthropy by not confining the application of your skill to men's bodies, but by attending also to the cure of the diseases of their souls. It is not only in accordance with popular report that I thus write. I am moved by the personal experience which I have had on many occasions and to a remarkable degree at the present time, in the midst of the unspeakable wickedness of our enemies, which has flooded our life like a noxious torrent. You have most skilfully dispersed it and by pouring in your soothing words have allayed the inflammation of my heart. Having regard to the successive and diversified attacks of my enemies against me, I thought that I ought to keep silence and to bear their successive assaults without reply, and without attempting to contradict foes armed with a lie, that terrible weapon which too often drives its point through the heart of truth herself. You did well in urging me not to abandon the defence of truth, but rather to convict our calumniators, lest haply, by the success of lies, many be hurt.
Source: Letters (New Advent)