Bad improvisers block action, often with a high degree of skill. Good improvisers develop action.

There's no idea that can't be explained to a thoughtful 14-year-old. If the thoughtful 14-year-old doesn't get it, it is your fault, not the 14-year-old's.

People don't rise from nothing.

Sometimes the most modest changes can bring about enormous effects.

Innovation-the heart of the knowledge economy-is fundamentally social.

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.

A book, I was taught long ago in English class, is a living and breathing document that grows richer with each new reading.