the 10,000hr rule is a definite key in success

People at CDC [Centers for Disease Control] who cut their teeth on diseases over the last 10 years have started to think of crime as another disease, and using some of these same concepts. It was something that was in the air in that world, but it was time to bust it out and apply it to any number of different social epidemics.

Incompetence is certainty in the absence of expertise. Overconfidence is certainty in the presence of expertise.

If you don't contradict yourself on a regular basis, then you're not thinking.

If you look at the careers of great entrepreneurs and you look at the moment they took their plunge, the plunge is rarely a great financial or material risk, it’s a social risk. At the moment they started their new businesses, everyone around them said ‘you’re an idiot’.

[Norden] said, with the Mark 15 Norden bombsight, he could drop a bomb into a pickle barrel at 20,000 feet.

There is a simple way to package information that, under the right circumstances, can make it irresistible. All you have to do is find it.