Ad Massurium Sabinum libri
Ex libro LI
The Same, On Sabinus, Book LI. He who orders anyone to act as judge must be a magistrate. 1A magistrate, or he who is invested with any authority, (as for instance, a Proconsul, a Prætor, or any other official who governs a province) cannot appoint a judge on the day on which he becomes a private person.
Ulpianus, On Sabinus, Book LI. For other public offices are not lost by a person whose status is changed in this way; for a change of status deprives a man of certain private and domestic rights, but it does not deprive him of those of citizenship.
Ulpianus, On Sabinus, Book LI. If, in the appointment of a judge, the place in which he is to discharge his duties is not mentioned, he is held to be appointed to act in that place where he can do so without inconvenience to the litigants.
Ulpianus, On Sabinus, Book LI. Where property is the subject of legal proceedings and an oath is taken with reference to the claim, we do not consider its value to be greater because the judgment may be for a larger amount on account of the contumacy of the defendant in not surrendering the property, as it does not by this means become more valuable; but its value is increased above what it is worth on account of the contumacy of the defendant:
The Same, On Sabinus, Book LI. If I purchase a slave and sell him, and afterwards have judgment rendered against me in favor of the purchaser, because I could not deliver the slave on account of eviction, the stipulation becomes operative.
Ulpianus, On Sabinus, Book LI. After a judge has once rendered his decision, he ceases to be judge so far as this case is concerned. It is our practice that a magistrate who has once rendered judgment for a larger or a smaller sum than was claimed cannot amend it, because he has performed the duty of his office well or ill, once for all.
The Same, On Sabinus, Book LI. There is no difference between the expressions, “As much as a thing is worth,” and “As much as a thing appears to be worth,” for it has been established that in both instances a true valuation of the property must be made.
Ulpianus, On Sabinus, Book LI. Anyone who has the power to condemn has also the power to acquit.