Nec vero in praediis solum ius civile ductum a natura malitiam fraudemque vindicat, sed etiam in mancipiorum venditione venditoris fraus omnis excluditur. Qui enim scire debuit de sanitate, de fuga, de furtis, praestat edicto aedilium. Heredum alia causa est.
72 Ex quo intellegitur, quoniam iuris natura fons sit, hoc secundum naturam esse, neminem id agere, ut ex alterius praedetur inscitia. Nec ulla pernicies vitae maior inveniri potest quam in malitia simulatio intellegentiae; ex quo ista innumerabilia nascuntur, ut utilia cum honestis pugnare videantur. Quotus enim quisque reperietur, qui impunitate et ignoratione omnium proposita abstinere possit iniuria?
Law vs. philosophy in dealing with knavery.
XVII. Now the law disposes of sharp practices in one way, philosophers in another: the law deals with them as far as it can lay its strong arm upon them; philosophers, as far as they can be apprehended by reason and conscience. Now reason demands that nothing be done with unfairness, with false pretence, or with misrepresentation. Is it not deception, then, to set snares, even if one does not mean to start the game or to drive it into them? Why, wild creatures often fall into snares undriven and unpursued. Could one in the same way advertise a house for sale, post up a notice "To be sold," like a snare, and have somebody run into it unsuspecting?
Civil law vs. moral law.
69 Owing to the low ebb of public sentiment, such a method of procedure, I find, is neither by custom accounted morally wrong nor forbidden either by statute or by civil law; nevertheless it is forbidden by the moral law. For there is a bond of fellowship—although I have often made this statement, I must still repeat it again and again—which has the very widest application, uniting all men together and each to each. This bond of union is closer between those who belong to the same nation, and more intimate still between those who are citizens of the same city-state. It is for this reason that our forefathers chose to understand one thing by the universal law and another by the civil law. The civil law is not necessarily also the universal law; but the universal law ought to be also the civil law. But we possess no substantial, life-like image of true Law and genuine Justice; a mere outline sketch is all that we enjoy. I only wish that we were true even to this; for, even as it is, it is drawn from the excellent models which Nature and Truth afford. 70 |"Good faith" in performance of contracts.| For how weighty are the words: "That I be not deceived and defrauded through you and my confidence in you"! How precious are these: "As between honest people there ought to be honest dealing, and no deception"! But who are "honest people," and what is "honest dealing"—these are serious questions.
It was Quintus Scaevola, the pontifex maximus, who used to attach the greatest importance to all questions of arbitration to which the formula was appended "as good faith requires;" and he held that the expression "good faith" had a very extensive application, for it was employed in trusteeships and partnerships, in trusts and commissions, in buying and selling, in hiring and letting—in a word, in all the transactions on which the social relations of daily life depend; in these, he said, it required a judge of great ability to decide the extent of each individual's obligation to the other, especially when counter-claims were admissible in most cases.
71 Away, then, with sharp practice and trickery, which desires, of course, to pass for wisdom, but is far from it and totally unlike it. For the function of wisdom is to discriminate between good and evil; whereas, inasmuch as all things morally wrong are evil, trickery prefers the evil to the good.
It is not only in the case of real estate transfers that the civil law, based upon a natural feeling for the right, punishes trickery and deception, but also in the sale of slaves every form of deception on the vendors part is disallowed. For by the aediles' ruling the vendor is answerable for any deficiency in the slave he sells, for he is supposed to know if his slave is sound, or if he is a runaway, or a thief. The case of those who have just come into the possession of slaves by inheritance is different.
Cunning is not wisdom.