《道德原则研究·附录三·关于正义的若干补论》第3节
It has been asserted by some, that justice arises from Human Conventions, and proceeds from the voluntary choice, consent, or combination of mankind. If by convention be here meant a promise (which is the most usual sense of the word) nothing can be more absurd than this position. The observance of promises is itself one of the most considerable parts of justice, and we are not surely bound to keep our word because we have given our word to keep it. But if by convention be meant a sense of common interest, which sense each man feels in his own breast, which he remarks in his fellows, and which carries him, in concurrence with others, into a general plan or system of actions, which tends to public utility; it must be owned, that, in this sense, justice arises from human conventions. For if it be allowed (what is, indeed, evident) that the particular consequences of a particular act of justice may be hurtful to the public as well as to individuals; it follows that every man, in embracing that virtue, must have an eye to the whole plan or system, and must expect the concurrence of his fellows in the same conduct and behaviour. Did all his views terminate in the consequences of each act of his own, his benevolence and humanity, as well as his self-love, might often prescribe to him measures of conduct very different from those which are agreeable to the strict rules of right and justice. Thus, two men pull the oars of a boat by common convention for common interest, without any promise or contract; thus gold and silver are made the measures of exchange; thus speech and words and language are fixed by human convention and agreement. Whatever is advantageous to two or more persons, if all perform their part; but what loses all advantage if only one perform, can arise from no other principle There would otherwise be no motive for any one of them to enter into that scheme of conduct. [休谟自注] This theory concerning the origin of property, and consequently of justice, is, in the main, the same with that hinted at and adopted by Grotius, 'Hinc discimus, quae fuerit causa, ob quam a primaeva communione rerum primo mobilium, deinde et immobilinm discessum est: nimirum quod cum non contenti homines vesci sponte natis, antra habitare, corpore aut nudo agere, aut corticibus arborum ferarumve pellibus vestito, vitae genus exquisitius delegissent, industria opus fuit, quam singuli rebus singulls adhiberent. Quo minus autem fructus in commune conferrentur, primum obstitit locorum, in quae homines discesserunt, distantia, deinde justitiae et amoris defectus, per quem fiebat, ut nee in labore, nee in consumtione fructuum, quae debebat, aequalitas servaretur. Simul discimus, quomodo res in proprietatem iverint; non animi actu solo, neque enim scire alii poterant, quid alil suum esse vellent, ut eo abstinerent, et idem velle plures poterant; sed pacto quodam aut expresso, ut per divisionem, aut tacito, ut per occupationem.' De jure belli et pacis. Lib. Ii. Cap. 2. Sec. 2. Art. 4 and 5.
注释摘要
休谟在这里要澄清一个说法——正义来自人类的约定。这个说法在他之前已经有人在讲了，但他的任务是把其中的歧义拆干净，否则整个论证就站不稳。 他首先排除一种误解。如果“约定”指的是承诺，也就是彼此明确答应、立下约言，那说正义由此产生是荒谬的。理由很直接：遵守承诺本身就是正义最主要的部分之一。你不能说正义来自承诺，因为承诺的约束力恰恰已经预设了正义的存在。我们不是…