The 3 essential elements of unshakable confidence

Reuters/Andrew Kelly This post by Alex Liang originally appeared on Quora as an answer to the question "How do you build core confidence?" Confidence is fleeting. One minute you feel unstoppable, then your girlfriend or boyfriend breaks up with you and you're reaching for a tub of rocky road ice cream and a warm spoon. Why? It seems like some people just have an unlimited supply of confidence, like they won it off some scratch-off lottery ticket. But it's not luck. There are three essential elem...