''Engage in downward comparisons. You normally focus on those who seem to have more than you, but it would be wiser to look at those who have less. There are always plenty of people to use for such a comparison. They live in harsher environments, deal with more threats to their lives, and have deeper levels of insecurity about the future. You can even look at friends who have it much worse than you. This should stimulate not only empathy for the many who have less but also greater gratitude for what you actually possess. Such gratitude is the best antidote to envy.'' -The Laws of Human Nature by Robert Greene