Gilbert Keith Chesterton,
The Ball and the Cross — VIII: An Interlude of Argument
(1909)
“ I have heard that Christianity keeps the key of virtue, and that if you read Tom Paine you will cut your throat at Monte Carlo. It is such rubbish that I am not even angry at it. You say that Christianity is the prop of morals; but what more do you do? When a doctor attends you and could poison you with a pinch of salt, do you ask whether he is a Christian? You ask whether he is a gentleman, whether he is an M.D.--anything but that. When a soldier enlists to die for his country or disgrace it, do you ask whether he is a Christian? ”
