168. It must be known further, that the end is everything in the cause, and also everything in the effect; from this it is that end, cause, and effect, are called first end, middle end, and last end. But that the end may be everything in the cause, there must be something from the end [in the cause] wherein the end shall be; and that the end may be everything in the effect, there must be something from the end through the cause [in the effect] wherein the end shall be. For the end cannot be in itself alone, but it must be in something having existence from it, in which it can dwell as to all that is its own, and by acting, come into effect, until it has permanent existence. That in which it has permanent existence is the last end, which is called effect.