‘On that sea the Charybdis of luxury devours salvation; there with virginal countenance the Scylla of passion, smiling, lures chastity to shipwreck. Here is a barbarian shore, here the pirate Devil with his comrades carries chains of bondage. Do not trust him; do not be careless, even if the sea smiles like the quiet waters of a lake, even if the topmost surface of the quiescent element barely curls, this plain holds great mountains; within is peril; within is the enemy. Quick with the halyards, lower the sails. Let the cross of the ship’s yard be fastened on the bows; that calm is a storm.'”