(5) A struggle with unequal arms is not honorable. The polemic, then, will have to prove either that the weapons of his adversary are illegal, or, if this cannot be done, to inquire into his standpoint and his reasons and to prove in error the cause in its very principles.
(6) If the polemic thus succeeds in reducing his adversary ad abstordcum, i.e. to an illogical condition, which, by reason of its untenability, forces him hors de conmbat, the vanquished is turned into a friend and convert and the truth has indeed triumphed, as God would have it.