Opportunity beckons more surely when misfortune comes upon a person than it ever does when that person is riding the crest of a wave of success. It sharpens a person's wits, if that person will let it, enabling him or her to see more clearly and evaluate situations with a more knowledgeable judgment.
EpictetusWhen we act pugnaciously, and injuriously, and angrily, and rudely, to what level have we degenerated? To the level of the wild beasts. Well, the fact is that some of us are wild beasts of a larger size, while others are little animals, malignant and petty.
Epictetus