III. (6) Therefore, from what has here been said it is plain, that they make the halting-place of the irrational faculties, which are in them, in the plain. But Joseph is sent unto them because he is unable to bear the somewhat austere knowledge of his father; that he may learn, under gentler instructors, what is to be done and what will be advantageous; for he uses a doctrine woven together from divers foundations, very variegated and very artfully made, in reference to which the law-giver says, that he had "a robe of many colours made for Him;"[Ge 37:3.] signifying by this that he is an interpreter of labyrinth-like learning, such as is hard to be explained; (7) for as he philosophises more with a regard to political wisdom than to truth, he brings into one place and connects together the three kinds of good things, namely, external things, the things concerning the body, and those concerning the soul, things utterly different from one another in their whole natures; wishing to show that each has need of each, and that everything has need of everything; and that that which is really the complete and perfect good, is composed of all these things together, and that the parts of which this perfect good is compounded are parts or elements of good, but are not themselves perfect goods. (8) In the same way, as neither fire, nor earth, nor any one of the four elements, out of which the universe was created, are the world, but the meeting and mixture of all the elements together; in the same way also happiness ought not peculiarly to be sought for either in the external things, or in the things of the body, or in the things of the soul, taken by themselves; for each of the aforementioned things has only the rank of parts and elements, but it must be looked for in the combination of them all together.