Pope Innocent II (401-417)

Si instituta ecclesiastica ut sunt a beatis apostolis tradita integra vellent servare domini sacerdotes nulla diversitas, nulla varietas in ipsis ordinibus et consecrationibus haberetur (If the priests of our Lord wish to maintain the ecclesiastical rules that have been handed down intact and unchanged by the blessed Apostles, no deviation, no departure in these rules and sacred matters can be tolerated).