CELSUS, P. JUYE'NT1US, was the eon of Juventiue Coleus, also a jurist. This Celsus the father is spoken of by Celsus the eon, and also by Ncratius and Ulpian, in which passages he is always spoken of as Celsus the father. The extracts from Coleus in the ' Digest' are supposed to be from the works of Coleus the son. The son was twice consul, according to Pomponius. ('Dig.,' 1, tit 2.) It is uncertain in what year he was first consul, but his second consulship belongs to the thirteenth year of the emperor Hadrian (A.D. 129), as appears from an extant inscription and a senatusconsultum of that time which is preserved. (' Dig., 5, tit, 3, s. 20.) Celsue is also mentioned as a member of Hadrian' cousilium by Spartianus (c. 15); but he Is called Julius Celan,.
The younger Celsus was the author of a work entitled 'Digest/a,' in 39 books, as appears from the Florentine Index. Ile wrote also Epistolse,' of which the eleventh book is cited by Ulpian (' Dig.; 4,
tit. 4, e. 3); 'Commentarii,' of which the seventh book is cited ; and 'Quasstiones,' of which the nineteenth book is quoted in the 'Digest ' of Justinian. Coleus is mentioned by Selvius Juliaous, his contem porary, and by subsequent jurists. The tendency of his juristical opinions was to the maintenance of equity and fair dealing (bonum et teqnum). His definition of 'jun' is that It is the "ars requi bonique," a definition quoted with approbation by Ulpian ('Dig.,' 1, tit. 1, a. 1), though It is not a trno definition. Colima said more truly that in cases in which the good and the equitable were matters for considera tion, mischievoua mistakes were made under the authority of legal science ('Dig.,' 45, tit. 1, s. 91), an opinion which la quoted by Pnulus, who cane him Celsus Adoleseens, apparently to distinguish him from the father.