De Principiis

¹ Since in the preaching of the Church there is included the doctrine respecting a just judgment of God, which, when believed to be true, incites those who hear it to live virtuously, and to shun sin by all means, inasmuch as they manifestly acknowledge that things worthy of praise and blame are within our own power, come and let us discuss by themselves a few points regarding the freedom of the will— a question of all others most necessary. And that we may understand what the freedom of the will is, it is necessary to unfold the conception of it, that this being declared with precision, the subject may be placed before us.

2. Of things that move, some have the cause of their motion within themselves; others, again, are moved only from without. Now only portable things are moved from without, such as pieces of wood, and stones, and all matter that is held together by their constitution alone. And let that view be removed from consideration which calls the flux of bodies motion, since it is not needed for our present purpose. But animals and plants have the cause of their motion within themselves, and in general whatever is held together by nature and a soul, to which class of things they say that metals also belong. And besides these, fire too is self-moved, and perhaps also fountains of water. Now, of those things which have the cause of their movement within themselves, some, they say, are moved out of themselves, others from themselves: things without life, out of themselves; animate things, from themselves. For animate things are moved from themselves, a phantasy springing up in them which incites to effort. And again, in certain animals phantasies are formed which call forth an effort, the nature of the phantasy stirring up the effort in an orderly manner, as in the spider is formed the phantasy of weaving; and the attempt to weave follows, the nature of its phantasy inciting the insect in an orderly manner to this alone. And besides its phantasial nature, nothing else is believed to belong to the insect. And in the bee there is formed the phantasy to produce wax.

3. The rational animal, however, has, in addition to its phantasial nature, also reason, which judges the phantasies, and disapproves of some and accepts others, in order that the animal may be led according to them. Therefore, since there are in the nature of reason aids towards the contemplation of virtue and vice, by following which, after beholding good and evil, we select the one and avoid the other, we are deserving of praise when we give ourselves to the practice of virtue, and censurable when we do the reverse. We must not, however, be ignorant that the greater part of the nature assigned to all things is a varying quantity among animals, both in a greater and a less degree; so that the instinct in hunting-dogs and in war-horses approaches somehow, so to speak, to the faculty of reason. Now, to fall under some one of those external causes which stir up within us this phantasy or that, is confessedly not one of those things that are dependent upon ourselves; but to determine that we shall use the occurrence in this way or differently, is the prerogative of nothing else than of the reason within us, which, as occasion offers, arouses us towards efforts inciting to what is virtuous and becoming, or turns us aside to what is the reverse.

4. But if any one maintain that this very external cause is of such a nature that it is impossible to resist it when it comes in such a way, let him turn his attention to his own feelings and movements, (and see) whether there is not an approval, and assent, and inclination of the controlling principle towards some object on account of some specious arguments. For, to take an instance, a woman who has appeared before a man that has determined to be chaste, and to refrain from carnal intercourse, and who has incited him to act contrary to his purpose, is not a perfect cause of annulling his determination. For, being altogether pleased with the luxury and allurement of the pleasure, and not wishing to resist it, or to keep his purpose, he commits an act of licentiousness. Another man, again (when the same things have happened to him who has received more instruction, and has disciplined himself), encounters, indeed, allurements and enticements; but his reason, as being strengthened to a higher point, and carefully trained, and confirmed in its views towards a virtuous course, or being near to confirmation, repels the incitement, and extinguishes the desire.

5. Such being the case, to say that we are moved from without, and to put away the blame from ourselves, by declaring that we are like to pieces of wood and stones, which are dragged about by those causes that act upon them from without, is neither true nor in conformity with reason, but is the statement of him who wishes to destroy the conception of free-will. For if we were to ask such an one what was free-will, he would say that it consisted in this, that when purposing to do some thing, no external cause came inciting to the reverse. But to blame, on the other hand, the mere constitution of the body, is absurd; for the disciplinary reason, taking hold of those who are most intemperate and savage (if they will follow her exhortation), effects a transformation, so that the alteration and change for the better is most extensive,— the most licentious men frequently becoming better than those who formerly did not seem to be such by nature; and the most savage men passing into such a state of mildness, that those persons who never at any time were so savage as they were, appear savage in comparison, so great a degree of gentleness having been produced within them. And we see other men, most steady and respectable, driven from their state of respectability and steadiness by intercourse with evil customs, so as to fall into habits of licentiousness, often beginning their wickedness in middle age, and plunging into disorder after the period of youth has passed, which, so far as its nature is concerned, is unstable. Reason, therefore, demonstrates that external events do not depend on us, but that it is our own business to use them in this way or the opposite, having received reason as a judge and an investigator of the manner in which we ought to meet those events that come from without.