Ulpian

"Quod principi placuit legis habet vigorem."

"Nulla iniuria est, quæ in volentem fiat."

"It is well known that certain colonies have Italian rights, as, for example, the magnificent colony of Tyre, in Syria of Phoenicia, my birthplace. This city, with its commanding position, great antiquity, and prowess in arms, held tenaciously to the treaty which she had made with the Romans. The divine Severus, our emperor, granted Italian rights to this city as a reward for its signal loyalty toward the republic and the empire of Rome."

"Princeps legibus solutus est."

"Iustitia est constans et perpetua voluntas ius suum cuique tribuendi."

"Honeste vivere, alterum non laedere, suum cuique tribuere."