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

Did they know why they knew? Not at all. But the Knew!

The poorer children were, to her mind, often better behaved, less whiny, more creative in making use of their own time, and have a well-developed sense of independence.

The best example of how impossible it will be for Major League Baseball to crack down on steroids is the fact that baseball and the media are still talking about the problem as "steroids.

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’.

I don't really collect books. I tend to lose interest in them the minute I've read them, so most of the books I've read are left in airplanes and hotel rooms.

A study at the University of Utah found that if you ask someone why he is friendly with someone else, he’ll say it is because he and his friend share similar attitudes. But if you actually quiz the two of them on their attitudes, you’ll find out that what they actually share is similar activities. We’re friends with the people we do things with, as much as we are with the people we resemble. We don’t seek out friends, in other words. We associate with the people who occupy the same small, physical spaces that we do.