For as to that fifth kind of body, I know not what, which some have added to the four well-known elements of the world, and have said that the soul was made of this, I do not think we need spend time in discussing it in this place. For either they mean by body what we mean by it, viz., that of which a part is less than the whole in extension of place, and they are to be reckoned among those who have believed the mind to be corporeal: or if they call either all substance, or all changeable substance, body, whereas they know that not all substance is contained in extension of place by any length and breadth and height, we need not contend with them about a question of words.