The kinds of errors that cause plane crashes are invariably errors of teamwork and communication.

The answer is that the success of any kind of social epidemic is heavily dependent on the involvement of people with a particular and rare set of social gifts.

There are lots of issues more important than where billionaires donate their money.

Emotion is contagious.

Where they come from matters. They're products of particular places and environments.

There is more going on beneath the surface than we think, and more going on in little, finite moments of time than we would guess.

If a window is broken and left unrepaired, people walking by will conclude that no one cares and no one is in charge. Soon, more windows will be broken, and the sense of anarchy will spread from the building to the street on which it faces, sending a signal that anything goes.