[Footnote 2333: "Digest," I., 4, I.: "Quod principi placuit legis habet vigorem, utpote, cum lege regia, quæ de imperio ejus lata est, populus ei et in eum omne suum imperium et potestatem conferat. Quodcumque igitur imperator per epistolam et subscriptionem statuit, vel cognoscens decrevit, vel de plano interlocutus est, vel edicto præcepit, legis habet vigorem." (Extracts from Ulpian.)--Gaius, Institutes, I., 5: "Quod imperator constituit, non dubium est quin id vicem legis obtineat, quum ipse imperator per legem imperium obtineat."] [Footnote 2334: "Digest," I, 2. (Extracts from Ulpian): "Jus est a justitia appellatum; nam, ut eleganter Celsus definit, jus est ars boni et æqui. Cujus merito quis nos sacerdotes appellat: justitiam namque colimus, et boni et æqui notitiam profitemur, æquum ab iniquo separantes, licitum ab illicito discernentes,... veram, nisi fallor, philosophiam, non simulatam affectantes.... Juris præcepta sunt hæc: honeste vivere, alterum non lædere, suum cuique tribuere."--cf. Duruy, 12th period, ch. 87.] [Footnote 2335: Cf., on this immemorial principle of the entire body of Roman public law, cf. Fustel de Coulanges, "Histoire des institutions politiques et privées de l'ancienne France," vol. I., book II., ch. I, p.66 and following pages.] [Footnote 2336: Read the "Notitia dignitatum tam civilium quam militarium in partibus orientis et occidentis." It is the imperial almanac for the beginning of the fifth century. There are eleven ministers at the centre, each with his bureaux, divisions, subdivisions and squads of superposed functionaries,] [Footnote 2337: Cf. Piranesi's engravings.] [Footnote 2338: Cf., among other clues see Dante's: "De Monarchia".]