[187] But confusion is the destruction of all the original distinctive qualities, owing to their component parts penetrating one another at every point, so as to generate one thing wholly different, as is the case in that composition of the physicians which they call the tetrapharmacon. For that, I imagine, is made up of wax, and fat, and pitch, and resin, all compounded together, but when the medicine has once been compounded, then it is impossible for it again to be resolved into the powers of which it was originally composed, but every one of them is destroyed separately, and the destruction of them all has produced one other power of exceeding excellence.