[121] [cap.22] Very naturally, therefore, is the connection of Abraham with Hagar, placed at the end of ten years after his [59] [60] arrival in the land of the Chaldaeans. For it does not follow that the first moment that we become endowed with reason, while our intellect is still in a somewhat fluid state, we are able at once to derive encyclical instruction. But when we have attained to intelligence and acuteness of comprehension, then we no longer have a light and superficial mind, but rather a firm and solid intellect which we can exercise on every subject.