The Importance of Failure

I've run a marathon in bare feet before, but this time it turned out that almost the entire course was newly resurfaced with very jagged stones. The more failures you have on your CV, the more you know about what it's going to take to succeed. This is the so-called noble failure approach, or less fancily, trial and error. If you want success, you've got to be prepared to fail. It's an opportunity to learn valuable lessons.