Yes, and no one considers what the loss is to the common good,— a loss as great as it is real, no one estimates the injury entailed upon the state, when, men of virtue as we are, we are put to death in such numbers; when so many of the truly good suffer the last penalty. And here we call your own acts to witness, you who are daily presiding at the trials of prisoners, and passing sentence upon crimes. Well, in your long lists of those accused of many and various atrocities, has any assassin, any cutpurse, any man guilty of sacrilege, or seduction, or stealing bathers' clothes, his name entered as being a Christian too? Or when Christians are brought before you on the mere ground of their name, is there ever found among them an ill-doer of the sort? It is always with your folk the prison is steaming, the mines are sighing, the wild beasts are fed: it is from you the exhibitors of gladiatorial shows always get their herds of criminals to feed up for the occasion. You find no Christian there, except simply as being such; or if one is there as something else, a Christian he is no longer.
Source: The Apology (New Advent)