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.

When we become expert in something, our tastes grow more esoteric and complex.

Living a long life, the conventional wisdom at the time said, depended to a great extent on who we were-that is, our genes. It depended on the decisions we made-on what we chose to eat, and how much we chose to exercise, and how effectively we were treated by the medical system. No one was used to thinking about health in terms of community.

People can't do much about the fate part, but we can certainly do a lot about the man part.

I have a new way of doing things, and I don’t care if you think I’m crazy.

A lot of what is most beautiful about the world arises from struggle.

We learn by example and by direct experience because there are real limits to the adequacy of verbal instruction.