54 Suppose again that an honest man is offering a house for sale on account of certain undesirable features of which he himself is aware but which nobody else knows; suppose it is unsanitary, but has the reputation of being healthful; suppose it is not generally known that vermin are to be found in all the bedrooms; suppose, finally, that it is built of unsound timber and likely to collapse, but that no one knows about it except the owner; if the vendor does not tell the purchaser these facts but sells him the house for far more than he could reasonably have expected to get for it, I ask whether his transaction is unjust or dishonourable.

55 "Yes," says Antipater, "it is; for to allow a purchaser to be hasty in closing a deal and through mistaken judgment to incur a very serious loss, if this is not refusing 'to set a man right when he has lost his way' (a crime which at Athens is prohibited on pain of public execration), what is? It is even worse than refusing to set a man on his way: it is deliberately leading a man astray."

(55) "Can you say," answers Diogenes, "that he compelled you to purchase, when he did not even advise it? He advertised for sale what he did not like; you bought what you did like. If people are not considered guilty of swindling when they place upon their placards For Sale: A Fine Villa, Well Built, even when it is neither good nor properly built, still less guilty are they who say nothing in praise of their house. For where the purchaser may exercise his own judgment, what fraud can there be on the part of the vendor? But if, again, not all that is expressly stated has to be made good, do you think a man is bound to make good what has not been said? What, pray, would be more stupid than for a vendor to recount all the faults in the article he is offering for sale? And what would be so absurd as for an auctioneer to cry, at the owner's bidding, 'Here is an unsanitary house for sale?'"

56 In this way, then, in certain doubtful cases moral rectitude is defended on the one side, while on the other side the case of expediency is so presented as to make it appear not only morally right to do what seems expedient, but even morally wrong not to do it. This is the contradiction that seems often to arise between the expedient and the morally right. |Cicero's decision in the cases.| But I must give my decision in these two cases; for I did not propound them merely to raise the questions, but to offer a solution. 57 I think, then, that it was the duty of that grain dealer not to keep back the facts from the Rhodians, and of this vendor of the house to deal in the same way with his purchaser. The fact is that merely holding one's peace about a thing does not constitute concealment, but concealment consists in trying for your own profit to keep others from finding out something that you know, when it is for their interest to know it. And who fails to discern what manner of concealment that is and what sort of person would be guilty of it? At all events he would be no candid or sincere or straightforward or upright or honest man, but rather one who is shifty, sly, artful, shrewd, underhand, cunning, one grown old in fraud and subtlety. Is it not inexpedient to subject oneself to all these terms of reproach and many more besides?

58 XIV. Quodsi vituperandi, qui reticuerunt, quid de iis existimandum est, qui orationis vanitatem adhibuerunt? C. Canius, eques Romanus, nec infacetus et satis litteratus, cum se Syracusas otiandi, ut ipse dicere solebat, non negotiandi causa contulisset, dictitabat[315] se hortulos aliquos emere velle, quo invitare amicos et ubi se oblectare sine interpellatoribus posset. Quod cum percrebruisset, Pythius ei quidam, qui argentariam faceret Syracusis, venales quidem se hortos non habere, sed licere uti Canio, si vellet, ut suis, et simul ad cenam hominem in hortos invitavit in posterum diem. Cum ille promisisset, tum Pythius, qui esset ut argentarius apud omnes ordines gratiosus, piscatores ad se convocavit et ab iis petivit, ut ante suos hortulos postridie piscarentur, dixitque, quid eos facere vellet. Ad cenam tempori[316] venit Canius; opipare a Pythio apparatum convivium, cumbarum ante oculos multitudo; pro se quisque, quod ceperat, afferebat, ante pedes Pythi pisces abiciebantur.

59 Tum Canius: "Quaeso," inquit, "quid est hoc, Pythi? tantumne piscium? tantumne cumbarum?"

Et ille: "Quid mirum?" inquit, "hoc loco est Syracusis quicquid est piscium, hic aquatio, hac villa isti carere non possunt."

Incensus Canius cupiditate contendit a Pythio, ut venderet; gravate ille primo; quid multa? impetrat. Emit homo cupidus et locuples tanti, quanti Pythius voluit, et emit instructos; nomina facit, negotium conficit. Invitat Canius postridie familiares suos, venit ipse mature; scalmum nullum videt, quaerit ex proximo vicino, num feriae quaedam piscatorum essent, quod eos nullos videret.

"Nullae, quod sciam," inquit; "sed hic piscari nulli solent; itaque heri mirabar, quid accidisset."

60 Stomachari Canius; sed quid faceret? nondum enim C. Aquilius, collega et familiaris meus, protulerat de dolo malo formulas; in quibus ipsis, cum ex eo quaereretur,[317] quid esset dolus malus, respondebat: cum esset aliud simulatum, aliud actum. Hoc quidem sane luculente ut ab homine perito definiendi. Ergo et Pythius et omnes aliud agentes, aliud simulantes perfidi, improbi, malitiosi. Nullum igitur eorum factum potest utile esse, cum sit tot vitiis inquinatum.