We are all plagued by failures - by missed subtleties, overlooked knowledge, and outright errors. For the most part, we have imagined that little can be done beyond working harder and harder to catch the problems clean up after them. We are not in the habit of thinking the way the army pilots did as they looked upon their shiny new Model 299 bomber — a machine so complex no one was sure human beings could try it.

- Atul Gawande