The more socially intelligent you are, the happier and more robust and more enjoyable your relationships will be.

Feelings are self-justifying, with a set of perceptions and "proofs" all their own.

The best leaders don’t know just one style of leadership—they’re skilled at several, and have the flexibility to switch between styles as the circumstances dictate.

Like secondhand smoke, the leakage of emotions can make a bystander an innocent casualty of someone else's toxic state.

Evolutionary theory holds that our ability to sense when we should be suspicious has been every bit as essential for human survival as our capacity for trust and cooperation.

Fear, in evolution, has a special prominence: perhaps more than any other emotion it is crucial for survival.

Reducing the economic gap may be impossible without also addressing the gap in empathy.