Humility is the salt of virtue. As salt gives flavor to food, so humility gives perfection to virtue. Without salt, food goes bad easily, and without humility, virtue is easily spoiled by pride, vainglory, impatience – and it perishes. There is a humility which a man gains by his own struggles: knowing his own insufficiency, accusing himself for his failings, not allowing himself to judge others. And there is a humility into which God leads a man through the things that happen to him: allowing him to experience afflictions, humiliations, and deprivations.
–Saint Philaret of Moscow (1782-1867)