My biggest fear, that 27 percent of Americans under 65 have an existing health condition that, without the protections of the Affordable Care Act, would mean they would - could be automatically excluded from insurance coverage. Before the ACA, they wouldn't have been able to get insurance coverage on the individual market, you know, if you're a freelancer or if you had a small business or the like.

Sometimes we can offer a cure, sometimes only a salve, sometimes not even that. But whatever we can offer, our interventions, and the risks and sacrifices they entail, are justified only if they serve the larger aims of a person's life. When we forget that, the suffering we inflict can be barbaric. When we remember it the good we do can be breathtaking.

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.

My own son has a congenital heart condition, where his life was saved by a cardiac surgeon stepping in at 11 days of life to save his life. But he is now 21 years old because of constant monitoring and working with him with a primary care physician. that's the only reason now that he's getting to live a long and healthy life. That's what we're not rewarding. They don't have the kind of resources and commitment that we are giving to people like me. I have millions of dollars of equipment available to me when I go to work every day in an operating room.

A failure often does not have to be a failure at all. However, you have to be ready for it-will you admit when things go wrong? Will you take steps to set them right?-because the difference between triumph and defeat, you'll find, isn't about willingness to take risks. It's about mastery of rescue.

Expertise is the mantra of modern medicine.

The possibilities and probabilities are all we have to work with in medicine, though. What we are drawn to in this imperfect science, what we in fact covet in our way, is the alterable moment-the fragile but crystalline opportunity for one's know-how, ability, or just gut instinct to change the course of another's life for the better.