PART I.
THERE are, then, essential spirit, reason, intelligence, perception. Opinion and sensation tend towards perception, reason towards the essential spirit; thought advances independently. Thought is a**ociated with perception. Conjoined, all these become a single form, which is that of the soul. Opinion and sensation tend also towards perfection, but they do not continue in the same condition, they exhibit excess, failure, or variation. Separated from perception, they deteriorate; approximating to and following it, they participate in the intellectual reason through the sciences. We have the power of choice; it depends on us to choose either the best or the worst by our will. The choice of evil approximates us to the corporeal nature, and subjects us to Destiny. The intellectual spirit which is in us, being free, the intellectual reason is free also, always identical with itself, and independent of Destiny. Therefore, in following this higher and intelligent reason, ordained by the supreme God, the spirit is superior to the order of Nature over creatures; but the soul which attaches herself to these creatures participates in their destiny, though foreign to their nature.