“Now I shall show them, that as the mother-of-pearl fish lives in the sea without taking in a drop of salt-water, and as there are near the Chelidonian islands springs of fresh water in the midst of the sea, and as the fire-flies fly in the flames without singeing their wings, so a strong and steadfast soul can live in the world without imbibing any worldly humour — can find springs of sweet piety in the middle of the salt-waters of the age— and fly amidst the flames of earthly lusts without burning the wings of the holy desires of the devout life.”—St. Francis de Sales