The most curious thing, however, one, too, that must weigh heavily in the balance when judging of his mental state, is that, as shown elsewhere, by dint of repeating this he actually came to believe that his caricature of Catholicism was perfectly true to fact. The calumnies become part of his mental framework, the very frequency and heat of his charges blinding him to all sense of their enormity, and clouding his outlook. What is even worse is, that, even when he occasionally glimpses the truth he yet believes it lawful to deviate from it where this suits his purpose. Thus he came to formulate the dangerous theory of the lie of necessity and the useful lie which we have already described in his own words. He goes so far as to say, that the nature of his foes was utterly devilish (above, p. 155, n. 4), and, when assailing the wickedness of Popery, he considers “everything lawful for the salvation of souls” (“_omnia nobis licere arbitramur_”).[504] Our “tricks, lies and stumblings” may “easily be atoned for, for God’s Mercy watches over us.”[505] On other occasions his opponents become “a pack of fools”; they deserve nothing but scorn and no heed should be paid to their objections. Even should the world write against him he will only pity them. All earlier ages and “a thousand Fathers and Councils of the Church” cannot rob him of the golden grains of truth which he alone possesses. No sooner does he speak of the Papists and their religion, than, irresistibly, there rises up before his mind the picture of the “tonsures, cowls, frocks and bawling in the choir,” in short the so-called holiness-by-works, on which he seizes to load ridicule on all that is Popish. This Luther is apt to do even when treating of subjects quite alien to this sort of polemics. In his “Von den Conciliis und Kirchen” (1539) he has a lengthy dissertation on the marks of the Church; the subject being a wide one he is anxious to get on with it, yet, even so, his pen again and again wanders off into vituperation. He apostrophises himself incidentally as follows: “But how is it that I come again to speak of the infamous, filthy menials of the Pope? Let them begone, and, for ever,” etc. With these words he breaks off a wild outburst in which he had declared that the Pope and his men were persecuting the Word of God, i.e. Luther’s doctrine, “though well aware of its truth; very bad Apostles, Evangelists and Prophets must they be, like the devil and his angels.”[506]