To become a chess grandmaster also seems to take about ten years. (Only the legendary Bobby Fisher got to that elite level in less than that amount of time: it took him nine years.) And what's ten years? Well, it's roughly how long it takes to put in ten thousand hours of hard practice. Ten thousand hours is the magic number of greatness.

People don't rise from nothing.

One of the things I think the police have to do is to stop behaving like armies.

Starting epidemics requires concentrating resources on a few key area. The Law of the Few says that Connectors, Mavens, and Salesman are responsible for starting word-of-mouth epidemics, which means that if you are interested in starting a word-of-mouth epidemic , your resources ought to be solely concentrated on these three groups. No one else matters.

If you're in business it's both a promise and a warning. It says that sometimes little things can cause some little guy to have an overnight success.

There’s this powerful phrase in the legal world, “Difficult cases make bad law.” The exception is the difficult case. You can’t generalize them by definition. So although they are fascinating, they don’t solve any problem because they’re so one of a kind.

We vary greatly in the natural advantages that we've been given. The world's not fair