The Rule of 150 says that congregants of a rapidly expanding church, or the members of a social club, or anyone in a group activity banking on the epidemic spread of shared ideals needs to be particularly cognizant of the perils of the bigness. Crossing the 150 line is a small change that can make a big difference.

You don't want to be first, right? You want to be second or third. You don't want to be - Facebook is not the first in social media. They're the third, right? Similarly, you know, if you look at Steve Jobs' history, he's never been first.

We overlook just how large a role we all play--and by 'we' I mean society--in determining who makes it and who doesn't.

If you want to bring a fundamental change in people's belief and behavior...you need to create a community around them, where those new beliefs can be practiced and expressed and nurtured.

When writing, you can't break physical rules. You can't have people come back from the dead. That's cheating. I am a kind of narrative fundamentalist in many ways.

Working really hard is what successful people do.

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.