Whoever has the charge of others ought not hesitate to resist and correct the vices of those who depend on him, or even to oppose their sentiments when need requires it----always, however, with mildness and peace, especially when he has to enunciate any truths difficult to receive. Such truths must first be heated by a burning fire of charity, which will take away all their sharpness; otherwise, they will be sour fruit, better calculated to cause disease than to give nourishment. Nothing is more bitter than walnut-bark when it is green; but when made into a preserve, it is very sweet and exceedingly wholesome. So reproof, which is very bitter in its nature, heated at the fire of charity and sweetened by amiability, becomes itself pleasing and delicious. And when truth uttered by the tongue is destitute of sweetness, it is a sign that the heart is wanting in true charity.----St. Francis de Sales