XIII. (42) But in the first creation of the universe, as I have said already, God produced the whole race of trees out of the earth in full perfection, having their fruit not incomplete but in a state of entire ripeness, to be ready for the immediate and undelayed use and enjoyment of the animals which were about immediately to be born. (43) Accordingly he commanded the earth to produce these things. And the earth, as though it had for a long time been pregnant and travailing, produced every sort of seed, and every sort of tree, and also of fruit, in unspeakable abundance; and not only were these produced fruits to be food for living animals, but enough also to serve as a preparation for the continuous production of similar fruits hereafter; covering substances consisting of seed, in which are the principles of all plants undistinguishable and invisible, but destined hereafter to become manifest and visible in the periodical maturity of the fruit. (44) For God thought fit to endue nature with a long duration, making the races that he was creating immortal, and giving them a participation in eternity. On which account he led on and hastened the beginning towards the end, and caused the end to turn backwards to the beginning: for from plants comes fruit, as the end might come from the beginning; and from the fruit comes the seed, which again contains the plant within itself, so that a fresh beginning may come from the end.