4. But since the necessities of our discussion and argument have compelled us to say a great many things in the course of fourteen books, which we cannot view at once in one glance, so as to be able to refer them quickly in thought to that which we desire to grasp, I will attempt, by the help of God, to the best of my power, to put briefly together, without arguing, whatever I have established in the several books by argument as known, and to place, as it were, under one mental view, not the way in which we have been convinced of each point, but the points themselves of which we have been convinced; in order that what follows may not be so far separated from that which precedes, as that the perusal of the former shall produce forgetfulness of the latter; or at any rate, if it have produced such forgetfulness, that what has escaped the memory may be speedily recalled by re-perusal.