Remarks on the theory here laid down by Sokrates. It is too narrow, and exclusively prudential.
I perfectly agree with the doctrine laid down by Sokrates in the Protagoras, that pain or suffering is the End to be avoided or lessened as far as possible — and pleasure or happiness the End to be pursued as far as attainable — by intelligent forethought and comparison: that there is no other intelligible standard of reference, for application of the terms Good and Evil, except the tendency to produce happiness or misery: and that if this standard be rejected, ethical debate loses all standard for rational discussion, and becomes only an enunciation of the different sentiments, authoritative and self-justifying, prevalent in each community. But the End just mentioned is highly complex, and care must be taken to conceive it in its full comprehension. Herein I conceive the argument of Sokrates (in the Protagoras) to be incomplete. It carries attention only to a part of the truth, keeping out of sight, though not excluding, the remainder. It considers each man as an individual, determining good or evil for himself by calculating his own pleasures and pains: as a prudent, temperate, and courageous agent, but neither as just nor beneficent. It omits to take account of him as a member of a society, composed of many others akin or co-ordinate with himself. Now it is the purpose of an ethical or political reasoner (such as Plato both professes to be and really is) to study the means of happiness, not simply for the agent himself, but for that agent together with others around him — for the members of the community generally.[145] The Platonic Sokrates says this himself in the Republic: and accordingly, he there treats of other points which are not touched upon by Sokrates in the Protagoras. He proclaims that the happiness of each citizen must be sought only by means consistent with the security, and to a certain extent with the happiness, of others: he provides as far as practicable that all shall derive their pleasures and pains from the same causes: common pleasures, and common pains, to all.[146] The doctrine of Sokrates in the Protagoras requires to be enlarged so as to comprehend these other important elements. Since the conduct of every agent affects the happiness of others, he must be called upon to take account of its consequences under both aspects, especially where it goes to inflict hurt or privation upon others. Good and evil depend upon that scientific computation and comparison of pleasures and pains which Sokrates in the Protagoras prescribes: but the computation must include, to a certain extent, the pleasures and pains (security and rightful expectations) of others besides the agent himself, implicated in the consequences of his acts.[147]
[145] Plato, Republ. iv. pp. 420-421, v. p. 466 A.
[146] Plato, Republ. v. pp. 462 A-B-D, 464 A-D.
Throughout the first of these passages we see ἀγαθὸν used as the equivalent of ἡδονή, κακὸν as the equivalent of λύπη.
[147] See, especially on this point, the brief but valuable Tract on Utilitarianism by Mr. John Stuart Mill. In page 16 of that work attention is called to the fact, that in Utilitarianism the standard is not the greatest happiness of the agent himself alone, but the greatest amount of happiness altogether. So that we cannot with exactness call the doctrine of Sokrates, in his conversation with Protagoras, “the theory of Utilitarianism,” as Mr. Mill calls it in page 1.
As to this point, we shall find the Platonic Sokrates not always correct, nor even consistent with himself. This will appear especially when we come to see the account which he gives of Justice in the Republic. In that branch of the Ethical End, a direct regard to the security of others comes into the foreground. For in an act of injustice, the prominent characteristic is that of harm, done to others — though that is not the whole, since the security of the agent himself is implicated with that of others in the general fulfilment of these obligations. It is this primary regard to others, and secondary regard to self, implicated in one complex feeling — which distinguishes justice from prudence. The Platonic Sokrates in the Republic (though his language is not always clear) does not admit this; but considers justice as a branch of prudence, necessary to ensure the happiness of the individual agent himself.
The discourse of Protagoras brings out an important part of the whole case, which is omitted in the analysis by Sokrates.
Now in the Protagoras, what the Platonic Sokrates dwells upon (in the argument which I have been considering) is prudence, temperance, courage: little or nothing is said about justice: there was therefore the less necessity for insisting on that prominent reference to the security of others (besides the agent himself) which justice involves. If, however, we turn back to the earlier part of the dialogue, to the speech delivered by Protagoras, we see justice brought into the foreground. It is not indeed handled analytically (which is not the manner of that Sophist), nor is it resolved into regard to pleasure and pain, happiness and misery: but it is announced as a social sentiment indispensably and reciprocally necessary from every man towards every other (δίκη — αἰδὼς), distinguishable from those endowments which supply the wants and multiply the comforts of the individual himself. The very existence of the social union requires, that each man should feel a sentiment of duties on his part towards others, and duties on their parts towards him: or (in other words) of rights on his part to have his interests considered by others, and rights on their parts to have their interests considered by him. Unless this sentiment of reciprocity — reciprocal duty and right — exist in the bosom of each individual citizen, or at least in the large majority — no social union could subsist. There are doubtless different degrees of the sentiment: moreover the rights and duties may be apportioned better or worse, more or less fairly, among the individuals of a society; thus rendering the society more or less estimable and comfortable. But without a certain minimum of the sentiment in each individual bosom, even the worst constituted society could not hold together. And it is this sentiment of reciprocity which Protagoras (in the dialogue before us) is introduced as postulating in his declaration, that justice and the sense of shame (unlike to professional aptitudes) must be distributed universally and without exception among all the members of a community. Each man must feel them, in his conduct towards others: each man must also be able to reckon that others will feel the like, in their behaviour towards him.[148]