I don't always agree with Mark Cuban, but I think he makes a good point on this when he talks about the folly in the adage, "follow your passions." His point is that you should follow your efforts as that leads you to be better at something, which in turn grows your passions in it. You can read his words for yourself: http://blogmaverick.com/2012/03/18/dont-follow-your-passion-....