If someone cannot distinguish the form of the good by an account, setting it apart from everything else, and make his way through all tests as in battle, eager to test according to essence rather than opinion, passing through all this without his account stumbling, one will not say that such a person knows the good itself or any other good whatsoever.833 Rather, if in some way he touches an image of it, he does so by opinion, not knowledge; and, dreaming and sleeping through his present life, he will reach Hades before awakening here and fall completely asleep.834
The same author
II.8.37 · Wachsmuth pp. 163
The opinion about noble and just ⟨and⟩ good things and their opposites that is genuinely true and firmly confirmed—whenever it arises in souls, I declare it divine and say that it comes into being in a godlike kind.835
⟨The same author⟩
II.8.38 · Wachsmuth pp. 163
For when knowledge fails, the person who errs errs in a respect in which he is ⟨not⟩ an expert practitioner.836
Porphyry, On What Is Up to Us
II.8.39.1 · Wachsmuth pp. 163-164
In our former discussions with one another, Chrysaorius, we raised the question of the choice of lives. By assigning this choice to souls outside bodies, Plato seems in danger of abolishing what is up to us and what is generally called self-government, if indeed the souls come to choose with their characters already formed by what they have lived through in the previous cycle and by what they loved or hated, or what pleased or pained them.837 It seemed best to leave these matters aside, since they allowed some plausible lines of defense. But the things he said they undergo through their admission into bodies, once they have chosen and are about to produce particular human beings, seemed difficult to us.838
Porphyry continued
II.8.39.2 · Wachsmuth pp. 164
At one point he says, “Let the first choose a life with which he will be joined by necessity”; at another, he says that the daimon allotted to us is an inescapable guardian.839 For Lachesis, who is a daughter of Necessity, sends along with the person who has drawn a lot and chosen a life a guardian of that life and a fulfiller, in every respect, of what has been chosen. This guardian takes the chooser and leads him to Clotho, beneath her hand and the turning of the spindle, and afterward to Atropos, who makes what has been spun irreversible.840
Porphyry continued
II.8.39.3 · Wachsmuth pp. 164
From there he leads him, with no turning back, beneath the throne of Necessity. After making him pass through it with the others, he takes him away to the plain of Forgetfulness, beside the river Ameles. From this river, he says, they must drink a measure of water, and those who drink forget everything.841 With all this thus spun, constrained, and ratified by the Fates, Forgetfulness, and Necessity, and with the daimon following and keeping watch over fate, what could we be masters of? Or how could it still be true that “virtue has no master; each person will have more or less of it as he honors or dishonors it”?842
Porphyry continued
II.8.39.4 · Wachsmuth pp. 164-165
When, then, I took Plato’s writings in hand and saw that we had strayed a little from the philosopher’s meaning, we were surprised at those who had raised the difficulties.843 They supposed that he meant simply lives, in the sense in which writers on life mention a farming life, another political, and another military; they took Plato likewise to mean the many different lives observed among human beings. Since the choice of these, and likewise a change away from them, is in many cases up to us, they naturally wonder how someone who has chosen one of them is compelled to fulfill that one alone in every respect.844
Porphyry continued
II.8.39.5 · Wachsmuth pp. 165
For those of the Stoa understand life as having one particular meaning, that of rational existence. They describe it as a course composed of activities, relations, productive actions, and experiences undergone; Plato, however, also applies the word life to the existence of nonrational animals.845 For according to him a swan’s existence is also a life; the lion’s, insofar as it is a lion, is another life, and the nightingale’s another. Human life too is a life, and one kind of it is female, another male; for he says that the patterns of lives are of every kind.846
Porphyry continued
II.8.39.6 · Wachsmuth pp. 165
One meaning of life in Plato is of this sort; another is what he presents as an incidental feature of these lives, a secondary character attached to life in the primary sense just described. For a dog’s primary life is its existence as a dog. The life of hunting dogs, tracking dogs, dogs kept about the table, or house-guarding dogs is an incidental addition to this life; this would be a secondary life.847
Porphyry continued
II.8.39.7 · Wachsmuth pp. 165-166
But in nonrational animals, which are deprived of self-government, this character is added either through nature or through the assignment made by the owner. In humans, being born of good ancestors or obtaining bodily beauty was provided through nature or fortune; at any rate, it is clear that none of these was up to us.848 But taking up crafts, pursuits, and sciences, and ⟨the⟩ pursuit of political ways of life and offices, and such things, have come to depend on what is up to us. Some are indeed hard to achieve because they also require assistance from outside; through this dependence they are difficult to attain and not easy to lay aside, as with offices, tyrannies, and popular leadership.849