Chapter I.--Defence of the Truth Should Precede Discussions Regarding It. 
By the side of every opinion and doctrine which agrees with the truth of things, there springs up some falsehood; and it does so, not because it takes its rise naturally from some fundamental principle, or from some cause peculiar to the matter in hand, but because it is invented on purpose by men who set a value on the spurious seed, for its tendency to corrupt the truth. This is apparent, in the first place, from those who in former times addicted themselves to such inquiries, and their want of agreement with their predecessors and contemporaries, and then, not least, from the very confusion which marks the discussions that are now going on. For such men have left no truth free from their calumnious attacks--not the being of God, not His knowledge, not His operations, not those books which follow by a regular and strict sequence from these, and delineate for us the doctrines of piety. On the contrary, some of them utterly, and once for all, give up in despair the truth concerning these things, and some distort it to suit their own views, and some of set purpose doubt even of things which are palpably evident. Hence I think that those who bestow attention on such subjects should adopt two lines of argument, one in defence of the truth, another concerning the truth: that in defence of the truth, for disbelievers and doubters; that concerning the truth, for such as are candid and receive the truth with readiness. Accordingly it behoves those who wish to investigate these matters, to keep in view that which the necessity of the case in each instance requires, and to regulate their discussion by this; to accommodate the order of their treatment of these subjects to what is suitable to the occasion, and not for the sake of appearing always to preserve the same method, to disregard fitness and the place which properly belongs to each topic. For, so far as proof and the natural order are concerned, dissertations concerning the truth always take precedence of those in defence of it; but, for the purpose of greater utility, the order must be reversed, and arguments in defence of it precede those concerning it. For the farmer could not properly cast the seed into the ground, unless he first extirpated the wild wood, and whatever would be hurtful to the good seed; nor the physician introduce any wholesome medicines into the body that needed his care, if he did not previously remove the disease within, or stay that which was approaching. Neither surely can he who wishes to teach the truth persuade any one by speaking about it, so long as there is a false opinion lurking in the mind of his hearers, and barring the entrance of his arguments. And, therefore, from regard to greater utility, I myself sometimes place arguments in defence of the truth before those concerning the truth; and on the present occasion it appears to me, looking at the requirements of the case, not without advantage to follow the same method in treating of the resurrection. For in regard to this subject also we find some utterly disbelieving, and some others doubting, and even among those who have accepted the first principles some who are as much at a loss what to believe as those who doubt; the most unaccountable thing of all being, that they are in this state of mind without having any ground whatsoever in the matters themselves for their disbelief, or finding it possible to assign any reasonable cause why they disbelieve or experience any perplexity.