Sensations and Ideas - The Intelligible Extension

The last para apin section five. Ot v, therefore you must not be surprised, my dear aristes, that you can learn certain evident truths by the testimony of the senses. Although the substance of the soul is not intelligible to the soul itself, and though its modalities cannot enlighten it, these same modalities, when they are joined to the intelligible extension, which is the archetype of bodies,. And they make this extension sensible. Can show us the interrelations in which the truths of geometry and physics consist. But still, it is true to say that theSoul is not a light unto itself, that its modalities are only darkness. So sensation combined with reason leads