These things being so, we are next in order to show, how that which is in our power (or free will), Fortune, possible, contingent, and other like things which are placed among the antecedent causes, can consist with Fate, and Fate with them; for Fate, as it seems, comprehends all things, and yet all these things will not happen by necessity, but every one of them according to the principle of its nature. Now the nature of the possible is to presubsist, as the genus, and to go before the contingent; and the contingent, as the matter and subject, is to be presupposed to free will; and our free will ought as a master to make use of the contingent; and Fortune comes in by the side of free will, through the property of the contingent of inclining to either part. Now you will more easily apprehend what has been said, if you shall consider that every thing which is generated, and the generation itself, is not done without a generative faculty or power, and the power is not without a substance. As for example, neither the generation of man, nor that which is generated, is without a power; but this power is about man, and man himself is the substance. Now the power or faculty is between the substance, which is the powerful, and the generation and the thing generated, which are both possibles. There being then these three things, the power, the powerful, and the possible; before the power can exist, the powerful must of necessity be presupposed as its subject, and the power must also necessarily subsist before the possible. By this deduction then may in some measure be understood what is meant by possible; which may be grossly defined as that which power is able to produce; or yet more exactly, if to this same there be added, provided there be nothing from without to hinder or obstruct it. Now of possible things there are some which can never be hindered, as are those in heaven, to wit, the rising and setting of the stars, and the like to these; but others may indeed be hindered, as are the most part of human things, and many also of those which are done in the air. The first, as being done by necessity, are called necessary; the others, which may fall one way or other, are called contingent; and they may both thus be described. The necessary possible is that whose contrary is impossible; and the contingent possible is that whose contrary is also possible. For that the sun should set is a thing both necessary and possible, forasmuch as it is contrary to this that the sun should not set, which is impossible; but that, when the sun is set, there should be rain or not rain, both the one and the other is possible and contingent. And the again of things contingent, some happen oftener, others rarely and not so often, others fall out equally or indifferently, as well the one way as the other, even as it happens. Now it is manifest that those are contrary to one another, — to wit, those which fall out oftener and those which happen but seldom, — and they both for the most part depend on Nature; but that which happens equally, as much one way as another, depends on ourselves. For that under the Dog it should be either hot or cold, the one oftener, the other seldomer, are both things subject to Nature; but to walk and not to walk, and all such things of which both the one and the other are submitted to the free will of man, are said to be in us and our election; but rather more generally to be in us. For there are two sorts of this being in our power; the one of which proceeds from some sudden passion and motion of the mind, as from anger or pleasure; the other from the discourse and judgment of reason, which may properly be said to be in our election. And some reason there is to believe that this possible and contingent is the same thing with that which is said to be in us and according to our free will, although differently named. For in respect to the future, it is styled possible and contingent; and in respect of the present, it is named in our power and in our free will. So that these things may thus be defined: The contingent is that which is itself — as well as its contrary — possible; and that which is in our power is one part of the contingent, to wit, that which now takes place according to our will. Thus have we in a manner declared, that the possible in the order of Nature precedes the contingent, and that the contingent subsists before free will; as also what each of them is, whence they are so named, and what are the qualities adjoined or appertaining to them. It now remains, that we treat of Fortune and casual adventure, and whatever else is to be considered with them. It is therefore certain that Fortune is a cause. Now of causes, some are causes by themselves, and others by accident. Thus for example, the proper cause by itself of an house or a ship is the art of the mason, the carpenter, or the shipwright; but causes by accident are music, geometry, and whatever else may happen to be joined with the art of building houses or ships, in respect either of the body, the soul, or any exterior thing. Whence it appears, that the cause by itself must needs be determinate and one; but the causes by accident are never one and the same, but infinite and undetermined. For many — nay, infinite — accidents, wholly different one from the other, may be in one and the same subject. Now the cause by accident, when it is found in a thing which not merely is done for some end but has in it free will and election, is then called Fortune; as is the finding a treasure while one is digging a hole to plant a tree, or the doing or suffering some extraordinary thing whilst one is flying, following, or otherwise walking, or only turning about, provided it be not for the sake of that which happens, but for some other intention. Hence it is, that some of the ancients have declared Fortune to be a cause unknown, that cannot be foreseen by the human reason. But according to the Platonics, who have approached yet nearer to the true reason of it, it is thus defined: Fortune is a cause by accident, in those things which are done for some end, and which are of our election. And afterwards they add, that it is unforeseen and unknown to the human reason; although that which is rare and strange appears also by the same means to be in this kind of cause by accident. But what this is, if it is not sufficiently evidenced by the oppositions and disputations made against it, will at least most clearly be seen by what is written in Plato’s Phaedo, where you will find these words: PHAED. Have you not heard how and in what manner the judgment passed? ECH. Yes indeed; for there came one and told us of it. At which we wondered very much that, the judgment having been given long before, it seems that he died a great while after. And what, Phaedo, might be the cause of it? PHAED. It was a fortune which happened to him, Echecrates. For it chanced that, the day before the judgment, the stern of the galley which the Athenians send every year to the isle of Delos was crowned. Plato, Phaedo , p. 58 A. In which discourse it is to be observed, that the expression happened to him is not simply to be understood by was done or came to pass, but it much rather regards what befell him through the concurrence of many causes together, one being done with regard to another. For the priest crowned the ship and adorned it with garlands for another end and intention, and not for the sake of Socrates; and the judges also had for some other cause condemned him. But the event was strange, and of such a nature that it might seem to have been effected by the providence of some human creature, or rather of some superior powers. And so much may suffice to show with what Fortune must of necessity subsist, and that there must be first some subject of such things as are in our free will: its effect is, moreover, like itself called Fortune. But chance or casual adventure is of a larger extent than Fortune; which it comprehends, and also several other things which may of their own nature happen sometimes one way, sometimes another. And this, as it appears by the derivation of its name, which is in Greek αὐτόματον, chance, is that which happens of itself, when that which is ordinary happens not, but another thing in its place; such as cold in the dog-days seems to be; for it is sometimes then cold.... Once for all, as that which is in our power is a part of the contingent, so Fortune is a part of chance or casual adventure; and both the two events are conjoined and dependent on the one and the other, to wit, chance on contingent, and Fortune on that which is in our power, — and yet not on all, but on what is in our election, as we have already said. Wherefore chance is common to things inanimate, as well as to those which are animated; whereas Fortune is proper to man only, who has his actions voluntary. And an argument of this is, that to be fortunate and to be happy are thought to be one and the same thing. Now happiness is a certain well-doing, and well-doing is proper only to man, and to him perfect.