This doctrine Sokrates takes much pains to refute. He contends that pleasurable things, so far forth as pleasurable, are always good — and painful things, so far forth as painful, always evil. When some pleasures are called evil, that is not on account of any thing belonging to the pleasure itself, but because of its ulterior consequences and concomitants, which are painful or distressing in a degree more than countervailing the pleasure. So too, when some pains are pronounced to be good, this is not from any peculiarity in the pain itself, but because of its consequences and concomitants: such pain being required as a condition to the attainment of health, security, wealth, and other pleasures or satisfactions more than counter-balancing. Sokrates challenges opponents to name any other end, with reference to which things are called good, except their tendency to prevent or relieve pains and to ensure a balance of pleasure: he challenges them to name any other end, with reference to which things are called evil, except their tendency to produce pains and to intercept or destroy pleasures. In measuring pleasures and pains against each other, there is no other difference to be reckoned except that of greater or less, more or fewer. The difference between near and distant, does indeed obtrude itself upon us as a misleading element. But it is the special task of the “measuring science” to correct this illusion — and to compare pleasures or pains, whether near or distant, according to their real worth: just as we learn to rectify the illusions of the sight in regard to near and distant objects.
Application of that reasoning to the case of courage.
Sokrates proceeds to apply this general principle in correcting the explanation of courage given by Protagoras. He shows, or tries to show, that courage, like all the other branches of virtue, consists in acting on a just estimate of comparative pleasures and pains. No man affronts evil, or the alternative of greater pain, knowing it to be such: no man therefore adventures himself in any terrible enterprise, knowing it to be so: neither the brave nor the timid do this. Both the brave and the timid affront that which they think not terrible, or the least terrible of two alternatives: but they estimate differently what is such. The former go readily to war when required, the latter evade it. Now to go into war when required, is honourable: being honourable, it is good: being honourable and good, it is pleasurable. The brave know this, and enter upon it willingly: the timid not only do not know it, but entertain the contrary opinion, looking upon war as painful and terrible, and therefore keeping aloof. The brave men fear what it is honourable to fear, the cowards what it is dishonourable to fear: the former act upon the knowledge of what is really terrible, the latter are misled by their ignorance of it. Courage is thus, like the other virtues, a case of accurate knowledge of comparative pleasures and pains, or of good and evil.[144]
[144] Compare, respecting Courage, a passage in the Republic, iv. pp. 429 C, 430 B, which is better stated there (though substantially the same opinion) than here in the Protagoras.
The opinion of the Platonic Sokrates may be illustrated by a sentence from the funeral oration delivered by Periklês, Thucyd. ii. 43, fin. Ἀλγεινοτέρα γὰρ ἀνδρί γε φρόνημα ἔχοντι ἡ ἐν τῷ μετὰ τοῦ μαλακισθῆναι κάκωσις, ἢ ὁ μετὰ ῥώμης καὶ κοινῆς ἐλπίδος ἅμα γιγνόμενος ἀναίσθητος θάνατος — which Dr. Arnold thus translates in his note: “For more grievous to a man of noble mind is the misery which comes together with cowardice, than the unfelt death which befalls him in the midst of his strength and hopes for the common welfare.”
So again in the Phædon (p. 68) Sokrates describes the courage of the ordinary unphilosophical citizen to consist in braving death from fear of greater evils (which is the same view as that of Sokrates in the Protagoras), while the philosopher is courageous on a different principle; aspiring only to reason and intelligence, with the pleasures attending it, he welcomes death as releasing his mind from the obstructive companionship of the body.
The fear of disgrace and dishonour, in his own eyes and in those of others, is more intolerable to the brave man than the fear of wounds and death in the service of his country. See Plato, Leg. i. pp. 646-647. He is φοβερὸς μετὰ νόμου, μετὰ δίκης, p. 647 E. Such is the way in which both Plato and Thucydides conceive the character of the brave citizen as compared with the coward.
It is plain that this resolves itself ultimately into a different estimate of prospective pains; the case being one in which pleasure is not concerned. That the pains of self-reproach and infamy in the eyes of others are among the most agonising in the human bosom, need hardly be remarked. At the same time the sentiments here conceived embrace a wide field of sympathy, comprising the interests, honour, and security, of others as well as of the individual agent.
The theory which Plato here lays down is more distinct and specific than any theory laid down in other dialogues.
Such is the ethical theory which the Platonic Sokrates enunciates in this dialogue, and which Protagoras and others accept. It is positive and distinct, to a degree very unusual with Plato. We shall find that he theorises differently in other dialogues; whether for the better or the worse, will be hereafter seen. He declares here explicitly that pleasure, or happiness, is the end to be pursued; and pain, or misery, the end to be avoided: and that there is no other end, in reference to which things can be called good or evil, except as they tend to promote pleasure or mitigate suffering, on the one side — to entail pain or suffering on the other. He challenges objectors to assign any other end. And thus much is certain — that in those other dialogues where he himself departs from the present doctrine, he has not complied with his own challenge. Nowhere has he specified a different end. In other dialogues, as well as in the Protagoras, Plato has insisted on the necessity of a science or art of calculation: but in no other dialogue has he told us distinctly what are the items to be calculated.