And so S. Leo “passim” concerning the Council of Chalcedon, “Concord will be easily established, if the hearts of all concur in that faith which, &c., no discussion being allowed whatever concerning any retractation,” Ep. 94. He calls such an act a “magnum sacrilegium,” Ep. 157. c. 3. “To be seeking for what has been disclosed, to retract what has been perfected, to tear up what has been laid down (definita), what is this but to be unthankful for what we gained?” Ep. 162. vid. the whole of it. He says that the attempt is “no mark of a peace-maker but a rebel.” Ep. 164. c. l. fin. vid. also Epp. 145, and 156, where he says, none can assail what is once determined, but “aut antichristus aut diabolus.” c. 2.