[194] Those who write treatises on Duties (De Officiis) as, for instance, Cicero, St. Ambrose, Grotius, Opalenius, Sharrok, Rachelius, Pufendorf, as well as the Casuists, teach that there are cases where one is not obliged to return to its owner a thing deposited: for example, one will not give back a dagger when one knows that he who has deposited it is about to stab someone. Let us pretend that I have in my hands the fatal draught that Meleager's mother will make use of to kill him; the magic javelin that Cephalus will unwittingly employ to kill his Procris; the horses of Theseus that will tear to pieces Hippolytus, his son: these things are demanded back from me, and I am right in refusing them, knowing the use that will be made of them. But how will it be if a competent judge orders me to restore them, when I cannot prove to him what I know of the evil consequences that restitution will have, Apollo perchance having given to me, as to Cassandra, the gift of prophecy under the condition that I shall not be believed? I should then be compelled to make restitution, having no alternative other than my own destruction: thus I cannot escape from contributing towards the evil. Another comparison: Jupiter promises Semele, the Sun Phaeton, Cupid Psyche to grant whatever favour the other shall ask. They swear by the Styx, _Di cujus jurare timent et fallere Numen_. One would gladly stop, but too late, the request half heard, _Voluit Deus ora loquentis_ _Opprimere; exierat jam vox properata sub auras_. One would gladly draw back after the request was made, making vain remonstrances; but they press you, they say to you: 'Do you make oaths that you will not keep?' The law of the Styx is inviolable, one must needs submit to it; if one has erred in making the oath, one would err more in not keeping it; the promise must be fulfilled, however harmful it may be to him who exacts it. It would be ruinous to you if you did not fulfil it. It seems as though the moral of these fables implies that a supreme necessity may constrain one to comply with evil. God, in truth, knows no other judge that can compel him to give what may turn to evil, he is not like Jupiter who fears the Styx. But his own wisdom is the greatest judge that he can find, there is no appeal from its judgements: they are the decrees of destiny. The eternal verities, objects of his wisdom, are more [195] inviolable than the Styx. These laws and this judge do not constrain: they are stronger, for they persuade. Wisdom only shows God the best possible exercise of his goodness: after that, the evil that occurs is an inevitable result of the best. I will add something stronger: To permit the evil, as God permits it, is the greatest goodness. _Si mala sustulerat, non erat ille bonus._