[61] And what is there that can hinder men from shooting up now out of the ground like plants, as they say that they did in former times? For the earth has not yet grown old so as to appear to have become barren by reason of the lapse of time, but it remains in the same condition as before, being always young, because it is a fourth part of the universe, and for the sake of ensuring the duration of the universe it is bound not to decay, because its kindred elements, water, air, and fire, all remain for ever exempt from old age.