[78] [cap.16] But Boethus adduces the most convincing arguments, which we shall proceed to mention immediately; for if, says he, the world was created and is liable to destruction, then [27] something will be made out of nothing, which appears to be most absurd even to the Stoics. Why so? Because it is not possible to discover any cause of destruction either within or without, which will destroy the world. For on the outside there is nothing except perhaps a vacuum, inasmuch as all the elements in their integrity are collected and contained within it, and within there is no imperfection so great as to be the cause of dissolution to so great a thing. Again, if it is destroyed without any cause, then it is plain that from something which has no existence will arise the engendering of destruction, which is an idea quite inadmissible by reason;