[MAECIANUS libro secundo fideicommissorum. ] §44.7.31.prNon solum stipulationes impossibili condicioni adplicatae nullius momenti sunt, sed etiam ceteri quoque contractus, ueluti emptiones locationes, impossibili condicione interposita aeque nullius momenti sunt, quia in ea re, quae ex duorum pluriumue consensu agitur, omnium uoluntas spectetur, quorum procul dubio in huiusmodi actu talis cogitatio est, ut nihil agi existiment adposita ea condicione, quam sciant esse impossibilem.
[MAECIANUS, from his second book on Trust-bequests.] Not only are stipulations attached to an impossible condition of no force, but also other contracts, such as purchases and leases, are equally of no force when an impossible condition is inserted; because in a matter which is transacted by the consent of two or more persons, the will of all must be regarded, and their intention in an act of this kind is beyond doubt such that they consider nothing to be done if that condition is attached which they know to be impossible.