The tipping point is that magic moment when an idea, trend, or social behavior crosses a threshold, tips, and spreads like wildfire.

Cultural legacies are powerful forces. They have deep roots and long lives. They persist, generation after generation, virtually intact, even as the economic and social and demographic conditions that spawned them have vanished, and they play such a role in directing attitudes and behavior that we cannot make sense of our world without them.

Six degrees of separation doesn't mean that everyone is linked to everyone else in just six steps. It means that a very small number of people are linked to everyone else in a few steps, and the rest of us are linked to the world through those special few.

In the six degrees of separation, not all degrees are equal.

I hope I have encouraged people in business to expand the way they make sense of human behavior.

If you are going to do something truly innovative, you have to be someone who does not value social approval. You can't need social approval to go forward. Otherwise, how would you ever do the thing that you are doing?