Expertise is the mantra of modern medicine.

Checklists turn out...to be among the basic tools of the quality and productivity revolution in aviation, engineering, construction - in virtually every field combining high risk and complexity. Checklists seem lowly and simplistic, but they help fill in for the gaps in our brains and between our brains.

We look for medicine to be an orderly field of knowledge and procedure. But it is not. It is an imperfect science, an enterprise of constantly changing knowledge, uncertain information, fallible individuals, and at the same time lives on the line. There is science in what we do, yes, but also habit, intuition, and sometimes plain old guessing. The gap between what we know and what we aim for persists. And this gap complicates everything we do.

If we took away the ability to put defibrillators in people in their last years, people would be shouting in the streets.

The Affordable Care Act also offered protections that allow for preexisting conditions, as people know, that you're provided coverage and you can maintain steady coverage. And that's an important part of being able to stay in care and do better over the long run.

Courage is strength in the face of knowledge of what is to be feared or hoped. Wisdom is prudent strength.

Coaching done well may be the most effective intervention designed for human performance.