Tertullian The Prescription Against Heretics who also "thought that they knew somewhat, whereas they knew not yet anything, as they ought to know."[296] Tertullian On Modesty and, "If any thinks himself to know, he knoweth not yet how it behaves him to know I"[144] Cyprian Treatise XII Three Books of Testimonies Against the Jews And again: "If any man thinketh that he knoweth anything, he knoweth not yet in what manner he ought to know."[536]