Street smarts. Book smarts. Common sense. There are many ways to define one’s intelligence. However, one thing that pays high dividends from the entry-level mail sorter to the chairman of the board is emotional intelligence, the capacity to identify, use, comprehend, and manage our emotions in such a way that we can positively function in stressful situations. Emotional intelligence is a lens used to assess and act upon problems, people, past decisions, and future opportunities. By understanding our emotions - what causes them, how we show them, and what effect they have on ourselves and others - we can make better decisions about how we interact with those around us. Developing emotional intelligence skills, the ability to use our emotions in order to optimize professional and personal success, is important for everyone.