Tertullian has been thought to be a lawyer, based on his use of legal analogies and on an identification of him with the jurist Tertullianus, who is quoted in the Pandects. Although Tertullian used a knowledge of Roman law in his writings, his legal knowledge does not demonstrably exceed what could be expected from a sufficient Roman education. The writings of Tertullianus, a lawyer of the same cognomen, exist only in fragments and do not explicitly denote a Christian authorship. Finally, any notion of Tertullian being a priest is also questionable. In his extant writings, he never describes himself as ordained in the church and seems to place himself among the laity. His conversion to Christianity perhaps took place about 197–198 (cf. Adolf Harnack, Bonwetsch, and others), but its immediate antecedents are unknown except as they are conjectured from his writings. The event must have been sudden and decisive, transforming at once his own personality. He writes that he could not imagine a truly Christian life without such a conscious breach, a radical act of conversion: "Christians are made, not born" (Apol., xviii). Two books addressed to his wife confirm that he was married to a Christian wife. In his middle life (about 207), he was attracted to the "New Prophecy" of Montanism, but today most scholars reject the assertion that Tertullian left the mainstream church or was excommunicated. "[W]e are left to ask whether Saint Cyprian could have regarded Tertullian as his master if Tertullian had been a notorious schismatic. Since no ancient writer was more definite (if not indeed fanatical) on this subject of schism than Saint Cyprian, the question must surely be answered in the negative." In the time of Augustine, a group of "Tertullianists" still had a basilica in Carthage, which within the same period passed to the orthodox church. It is unclear whether the name was merely another for the Montanists or that it means that Tertullian later split with the Montanists and founded his own group. Jerome says that Tertullian lived to old age. By the doctrinal works he published, Tertullian became the teacher of Cyprian and the predecessor of Augustine, who in turn became the chief founder of Latin theology. Writings General character Thirty-one works are extant, together with fragments of more. Some fifteen works in Latin or Greek are lost, some as recently as the 9th century (De Paradiso, De superstitione saeculi,