Sokr. — You seem absorbed in thought, Alkibiades, and not unreasonably. In supplicating the Gods, caution is required not to pray for gifts which are really mischievous. The Gods sometimes grant men’s prayers, even when ruinously destructive; as they granted the prayers of Œdipus, to the destruction of his own sons. Alk. — Œdipus was mad: what man in his senses would put up such a prayer? Sokr. — You think that madness is the opposite of good sense or wisdom. You recognise men wise and unwise: and you farther admit that every man must be one or other of the two, — just as every man must be either healthy or sick: there is no third alternative possible? Alk. — I think so. Sokr. — But each thing can have but one opposite:[27] to be unwise, and to be mad, are therefore identical? Alk. — They are. Sokr. — Wise men are only few, the majority of our citizens are unwise: but do you really think them mad? How could any of us live safely in the society of so many mad-men? Alk. — No: it cannot be so: I was mistaken. Sokr. — Here is the illustration of your mistake. All men who have gout, or fever, or ophthalmia are sick; but all sick men have not gout, or fever, or ophthalmia. So, too, all carpenters, or shoemakers, or sculptors, are craftsmen; but all craftsmen are not carpenters, or shoemakers, or sculptors. In like manner, all mad men are unwise; but all unwise men are not mad. Unwise comprises many varieties and gradations of which the extreme is, being mad: but these varieties are different among themselves, as one disease differs from another, though all agree in being disease and one art differs from another, though all agree in being art.[28]
[27] Plato, Alkib. ii. p. 139 B.
Καὶ μὴν δύο γε ὑπεναντία ἑνὶ πράγματι πῶς ἂν εἴη;
That each thing has one opposite, and no more, is asserted in the Protagoras also, p. 192-193.
[28] Plato, Alkib. ii. p. 139-140 A-B.
Καὶ γὰρ οἱ πυρέττοντες πάντες νοσοῦσιν, οὐ μένντοιοἱ νοσοῦντες πάντες πυρέττουσιν οὐδὲ ποδαγρῶσιν οὐδέ γε ὀφθαλμιῶσιν· ἀλλὰ νόσος μὲν πᾶν τὸ τοιοῦτόν ἐστι, διαφέρειν δέ φασιν οὓς δὴ καλοῦμεν ἰατρος τὴν ἀπεργασίαν αὐτῶν· οὐ γὰρ πᾶσαι οὔτε ὅμοιαι οὔτε ὁμοίως διαπράττονται, ἀλλὰ κατὰ τὴν αὐτῆς δύναμιν ἑκάστη.
Relation between a generic term, and the specific terms comprehended under it, was not then familiar.
(We may remark that Plato here, as in the Euthyphron, brings under especial notice one of the most important distinctions in formal logic — that between a generic between a term and the various specific terms comprehended under it. Possessing as yet no technical language for characterising this distinction, he makes it understood by an induction of several separate but analogous cases. Because the distinction is familiar now to instructed men, we must not suppose that it was familiar then.)
Frequent cases, in which men pray for supposed benefits, and find that when obtained, they are misfortunes. Every one fancies that he knows what is beneficial: mischiefs of ignorance.
Sokr. — Whom do you call wise and unwise? Is not the wise man, he who knows what it is proper to say and do — and the unwise man, he who does not know? Alk. — Yes. Sokr. — The unwise man will thus often unconsciously say or do what ought not to be said or done? Though not mad like Œdipus, he will nevertheless pray to the Gods for gifts, which will be hurtful to him if obtained. You, for example, would be overjoyed if the Gods were to promise that you should become despot not only over Athens, but also over Greece. Alk. — Doubtless I should: and every one else would feel as I do. Sokr. — But what if you were to purchase it with your life, or to damage yourself by the employment of it? Alk. — Not on those conditions.[29] Sokr. — But you are aware that many ambitious aspirants, both at Athens and elsewhere (among them, the man who just now killed the Macedonian King Archelaus, and usurped his throne), have acquired power and aggrandisement, so as to be envied by every one: yet have presently found themselves brought to ruin and death by the acquisition. So, also, many persons pray that they may become fathers; but discover presently that their children are the source of so much grief to them, that they wish themselves again childless. Nevertheless, though such reverses are perpetually happening, every one is still not only eager to obtain these supposed benefits, but importunate with the Gods in asking for them. You see that it is not safe even to accept without reflection boons offered to you, much less to pray for boons to be conferred.[30] Alk. — I see now how much mischief ignorance produces. Every one thinks himself competent to pray for what is beneficial to himself; but ignorance makes him unconsciously imprecate mischief on his own head.