Caius was a Roman presbyter some time in the 3rd century. His fragments can be seen here
"The sacred Scriptures they have boldly falsified, and the canons of the ancient faith they have rejected, and Christ they have ignored, not inquiring what the sacred Scriptures say, but laboriously seeking to discover what form of syllogism might be contrived to establish their impiety. And should any one lay before them a word of divine Scripture, they examine whether it will make a connected or disjoined form of syllogism; and leaving the Holy Scriptures of God, they study geometry, as men who are of the earth, and speak of the earth, and are ignorant of Him who comes from above. Euclid, indeed, is laboriously measured by some of them. and Aristotle and Theophrastus are admired; and Galen, forsooth, is perhaps even worshipped by some of them. But as to those men who abuse the arts of the unbelievers to establish their own heretical doctrine, and by the craft of the impious adulterate the simple faith of the divine Scriptures, what need is there to say that these are not near the faith? For this reason is it they have boldly laid their hands upon the divine Scriptures, alleging that they have corrected them.... For either they do not believe that the divine Scriptures were dictated by the Holy Spirit, and are thus infidels; or they think themselves wiser than the Holy Spirit, and what are they then but demoniacs? Nor can they deny that the crime is theirs, when the copies have been written with their own hand; nor did they receive such copies of the Scriptures from those by whom they were first instructed in the faith, and they cannot produce copies from which these were transcribed. And some of them did not even think it worth while to corrupt them; but simply denying the law and the prophets for the sake of their lawless and impious doctrine, trader pretexts of grace, they sunk down to the lowest abyss of perdition.
