XXI. (64) So now when the air and the water had received their appropriate races of animals as an allotment that was their due, God again summoned the earth for the creation of that share which still remained: and after the production of plants, the terrestrial animals still remained. And God said, "Let the earth bring forth cattle and beasts, and creeping things of each kind." And the earth did as it was commanded, and immediately sent forth animals differing in their formation and in their strength, and in the injurious or beneficial powers that were implanted in them. (65) And after all He made man. But how he made him I will mention presently, after I have first explained that he adopted the most beautiful connection and train of consequences according to the system of the creation of animals which he had sketched out to himself; for of souls the most sluggish and the most weakly formed has been allotted to the race of fishes; and the most exquisitely endowed soul, that which is in all respects most excellent, has been given to the race of mankind, and one something between the two to the races of terrestrial animals and those which traverse the air; for the soul of such creatures is endowed with more acute sensations than the soul of fishes, but is more dull than that of mankind. (66) And it was on this account that of all living creatures God created fishes first, inasmuch as they partake of corporeal substance in a greater degree than they partake of soul, being in a manner animals and not animals, moving soulless things, having a sort of semblance of soul diffused through them for no object beyond that of keeping their bodies live (just as they say that salt preserves meat), in order that they may not easily be destroyed. And after the fishes, he created winged and terrestrial animals: for these are endowed with a higher degree of sensation, and from their formation show that the properties of their animating principle are of a higher order. But after all the rest, then, as has been said before, he created man, to whom he gave that admirable endowment of mind--the soul, if I may so call it, of the soul, as being like the pupil to the eye; for those who most accurately investigate the natures of things affirm, that it is the pupil which is the eye of the eye.