The bottom line, and what struck me, was their argument that it is character development more than academic prowess that is the best predictor of success. Further, they maintain that the character traits required to overcome adversity, embrace opportunity and live a fulfilling life can be learned at school.
Read the article for details (http://www.nytimes.com/2011/09/18/magazine/what-if-the-secret-to-success-is-failure.html), but what I take away as most useful for myself and my kids, is the conclusion that a fulfilling life is one that is happy, meaningful, and productive. As parents, we sometimes focus on the first of these, often at the expense of the other two. Finding what is meaningful is a process of trying, failing, getting back up, and trying again. Being productive can mean doing things that, at first, we're not very good at. Once again, we need to learn to overcome failure to arrive at productivity.
An education that doesn't allow for failure, that doesn't celebrate the value of falling down and getting back up, doesn't prepare us for the realities of a fulfilling life. As parents we sometimes try to shield our children from the pain of failure. At those moments, if we ask ourselves how we're impacting the development of our child's character, we might choose to allow them their moment of failure, and focus on encouraging them to get back up.