1. Must thought, and self-consciousness imply being composed of different parts, and on their mutual contemplation? Must that which is absolutely simple be unable to turn towards itself, to know itself? ls it, on the contrary, possible that for that which is not composite to know itself? Self-consciousness, indeed, does not necessarily result from a thing's knowing itself because it is composite, and that one of its parts grasps the other; as, for instance, by sensation we perceive the form and nature of our body. In this case the whole will not be known, unless the part that knows the others to which it is united also knows itself; otherwise, we would find the knowledge of one entity, through another, instead of one entity through itself. A SIMPLE PRINCIPLE CAN HAVE SELF-CONSCIOUSNESS. While, therefore, asserting that a simple principle does know itself, we must examine into the possibility of this.[98] Otherwise, we would have to give up hope of real self-knowledge. But to resign this would imply many absurdities; for if it be absurd to deny that the soul possesses self-knowledge, it would be still more absurd to deny it of intelligence. How could intelligence have knowledge of other beings, if it did not possess the knowledge and science of itself? Indeed, exterior things are perceived by sensation, and even, if you insist, by discursive reason and opinion; but not by intelligence. It is indeed worth examining whether intelligence does, or does not have knowledge of such external things. Evidently, intelligible entities are known by intelligence. Does intelligence limit itself to knowledge of these entities, or does it, while knowing intelligible entities, also know itself? In this case, does it know that it knows only intelligible entities, without being able to know what itself is? While knowing that it knows what belongs to it, is it unable to know what itself, the knower, is? Or can it at the same time know what belongs to it, and also know itself? Then how does this knowledge operate, and how far does it go? This is what we must examine. THE SENSE-POWER OF THE SOUL DEALS ONLY WITH EXTERIOR THINGS. 2. Let us begin by a consideration of the soul. Does she possess self-consciousness? By what faculty? And how does she acquire it? It is natural for the sense-power to deal only with exterior objects; for even in the case in which it feels occurrences in the body, it is still perceiving things that are external to it, since it perceives passions experienced by the body over which it presides.[99] FUNCTIONS OF THE DISCURSIVE REASON OF THE SOUL.