Don't trust, just verify.

The conventional wisdom is often wrong.

No matter how expert you may be, well-designed checklists can improve outcomes.

Morality, it could be argued, represents the way that people would like the world to work, wheareas economics represents how it actually does work.

An incentive is a bullet, a key: an often tiny object with astonishing power to change a situation

When people don’t pay the true cost of something, they tend to consume it inefficiently.

Solving a problem is hard enough; it gets that much harder if you’ve decided beforehand it can’t be done.

Purity is a good mask for corruption because it discourages inquiry.

Data, I think, is one of the most powerful mechanisms for telling stories. I take a huge pile of data and I try to get it to tell stories.

If you own a gun and have a swimming pool in the yard, the swimming pool is almost 100 times more likely to kill a child than the gun is.

Scarcity is a captivating book, overflowing with new ideas, fantastic stories, and simple suggestions that just might change the way you live.

Poetry seems to sink into us the way prose doesn't. I can still quote verses I learned when I was very young, but I have trouble remembering one line of a novel I just finished reading.

I love jeans, T-shirts, boots, and tennis shoes.

It's going to be years and years before most people realize how greatly he contributed to American music.

No Republican has ever won South Carolina and Iowa or New Hampshire, as Trump has, without going on to win the nomination.

I as a Muslim believe deeply in the differences that are within Islam. But I also take seriously the idea that we have to come to know one another.

I yearned for a long, happy marriage with one person.

The custom of sinning takes away the sense of it, the course of the world takes away the shame of it.

Good works do not make a good man, but a good man does good works.

I go on expeditions for the same reason an estate agent sells houses - to pay the bills.

I love making movies, I love trying to make them as good as I can, but I feel like sometimes the marketing and publicity around the movie, becomes the most important part of it.