However this is a common argument against both the former opinions, that neither in corporeal limits nor in numbers there is the least footstep or appearance of that power by which the soul assumes to itself to judge of what is subject to sense. For it was the participation of the intelligible principle that endued it with understanding and the perceiving faculty. But as for opinion, belief, imagination, and its being affected with qualities relating to the body, no man could ever dream that they proceeded simply either from units, or lines, or surfaces. For not only the souls of mortals have a power to judge of what is subject to sense; but the soul of the world also, says Plato, when it revolves upon itself, and happens once to touch upon any fluid and roving substance or upon any thing indivisible, then being moved throughout its whole self, it gives notice with what this or that thing is identical, to what heterogeneal, and in what relations especially and in what manner it happens to be and to be affected towards each created thing. Here he gives at the same time an intimation of the ten Categories or Predicaments; but afterwards he gives us a clearer manifestation of these things. For when true reason, says he, is fixed upon what is subject to sense, and the circle of the Other, observing a just and equal motion, conveys its intelligence to the whole soul, then both opinion and belief become steadfast and certain; on the other side, when it is settled upon ratiocination, and the circle of the Same. turning readily and easily, furnishes its intimations, then of necessity knowledge arrives to perfection. And indeed, whoever shall affirm that any thing in which these two operations take place is any thing besides a soul, may deservedly be thought to speak any thing rather than the truth. From whence then does the soul enjoy this motion whereby it comprehends what is subject to sense, different from that other intelligible motion which ends in knowledge? This is a difficult task to resolve, unless we steadfastly assert that Plato here did not compose the soul, so singly considered, but the soul of the world also, of the parts above mentioned,—of the more worthy indivisible substance, and of the less worthy divisible in reference to bodies. And this soul of the world is no other than that motion which gives heat and vigor to thought and fancy, and sympathizes with what is subject to sense, not created, but existing from eternity, like the other soul. For Nature, which had the power of understanding, had also the power of opining. But the intelligible power is subject neither to motion nor affection, being established upon a substance that is still the same. The other is movable and fleeting, as being engaged to an unstable, fluctuating, and disunited matter. In regard the sensible substance was so far from any order, that it was without shape and boundless. So that the power which is fixed in this was capable of producing no clear and well-grounded notions and no certain or well-ordered movements, but only sleepy dreams and deliriums, which amuse and trouble corporeal stupidity; unless by accident they lighted upon the more worthy substance. For it was in the middle between the sensible and discerning faculty, and had a nature conformable and agreeable to both; from the sensible apprehending substance, and borrowing from judgment its power of discerning things intelligible.