Canon 71 Law students must not keep pagan customs

Those who are being taught the civil laws must not use the customs of the pagans, nor indeed be drawn to the theatres, or perform the so-called kylistrai, or clothe themselves in garments contrary to common use: neither at the time when they begin their studies, nor when they come to the end of them, nor, to speak generally, in the course of such education. And if anyone from now on shall dare to do this, let him be excommunicated.