From the article "How Will You Measure Your Life?":
“If you study the root causes of business disasters, over and over you’ll find this predisposition toward endeavors that offer immediate gratification. If you look at personal lives through that lens, you’ll see the same stunning and sobering pattern: people allocating fewer and fewer resources to the things they would have once said mattered most.” --Clayton Christensen
Related book: How Will You Measure Your Life?