“I’m not going to tell you that money doesn’t matter, because you wouldn’t believe me anyway. In fact, for too many people around the world, money is literally a life-or-death proposition. But if you are part of the lucky minority with the ability to choose, remember that money is a means, not an end. A career decision based only on money and not on love of the work or a desire to make a difference is a recipe for unhappiness.”