Further, Tertullian has been thought to be a lawyer based on his use of legal analogies and 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 that of 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.