ALEXANDER OF APHRODISIA'S POLEMIC AGAINST THE STOICS.
In this case, even if we possessed the power of doing something by ourselves, we would not be any the less than the remainder of the universe subjected to necessity, because Fate, containing the whole series of causes, necessarily determines each event. Now since Fate includes all causes, there is nothing which could hinder the occurrence of that event, or alter it. If then everything obeys the impulsion of a single principle, nothing is left to us but to follow it. Indeed, in this case, the fancies of our imagination would result from anterior facts, and would in turn determine our appetites; our liberty would then have become a mere word; nor would we gain any advantage from obeying our appetites, since our appetites themselves will be determined by anterior facts. We would have no more liberty than the other animals, than children, or the insane, who run hither and yon, driven by blind appetites; for they also obey their appetites, as fire would do, and as all the things which fatally follow the dispositions of their nature. These objections will be decisive for those capable of apprehending them; and in the search for other causes of our appetites they will not content themselves with the principles which we have examined.
THE HUMAN SOUL AS AN INDEPENDENT PRINCIPLE.
8. What other cause, besides the preceding, will we have to invoke so as to let nothing occur without a cause, to maintain order and interdependence of things in the world, and in order to preserve the possibility of predictions and omens without destroying our personality?
We shall have to introduce among the number of beings another principle, namely: the soul; and not only the World-soul, but even the individual soul of every person. In the universal concatenation of causes and effects, this soul is a principle of no little importance, because, instead of, like all other things, being born of a "seminal reason," it constitutes a "primary cause." Outside of a body, she remains absolute mistress of herself, free and independent of the cause which administers the world. As soon as she has descended into a body, she is no longer so independent, for she then forms part of the order to which all things are subjected. Now, inasmuch as the accidents of fortune, that is to say, the surrounding circumstances, determine many events, the soul alternately yields to the influence of external circumstances, and then again she dominates them, and does what she pleases. This she does more or less, according as she is good or evil. When she yields to the corporeal temperament, she is necessarily subjected to desire or anger, discouraged in poverty, or proud in prosperity, as well as tyrannical in the exercise of power. But she can resist all these evil tendencies if her disposition is good; she modifies her surroundings more than she is affected by them; some things she changes, others she tolerates without herself incurring guilt.
THE SOUL IS FREE WHEN FOLLOWING REASON.
9. All things therefore, which result either from a choice by the soul, or from exterior circumstances, are "necessary," or determined by a cause. Could anything, indeed, be found outside of these causes? If we gather into one glance all the causes we admit, we find the principles that produce everything, provided we count, amidst external causes, the influence exercised by the course of the stars. When a soul makes a decision, and carries it out because she is impelled thereto by external things, and yields to a blind impulse, we should not consider her determination and action to be free. The soul is not free when, perverting herself, she does not make decisions which direct her in the straight path. On the contrary, when she follows her own guide, pure and impassible reason, her determination is really voluntary, free and independent, and the deed she performs is really her own work, and not the consequence of an exterior impulse; she derives it from her inner power, her pure being, from the primary and sovereign principle which directs her, being deceived by no ignorance, nor vanquished by the power of appetites; for when the appetites invade the soul, and subdue her, they drag her with them by their violence, and she is rather "passive" than "active" in what she does.
THE SOUL OBEYS FATE ONLY WHEN EVIL.
10. The conclusion of our discussion is that while everything is indicated and produced by causes, these are of two kinds: First the human soul, and then only exterior circumstances. When the soul acts "conformably to right reason" she acts freely. Otherwise, she is tangled up in her deeds, and she is rather "passive" than "active." Therefore, whenever she lacks prudence, the exterior circumstances are the causes of her actions; one then has good reason to say that she obeys Fate, especially if Fate is here considered as an exterior cause. On the contrary, virtuous actions are derived from ourselves; for, when we are independent, it is natural for us to produce them. Virtuous men act, and do good freely. Others do good only in breathing-spells left them in between by their passions. If, during these intervals, they practice the precepts of wisdom, it is not because they receive them from some other being, it is merely because their passions do not hinder them from listening to the voice of reason.