Positive, optimistic sales people sell more than pessimistic sales people.

Doing a kindness produces the single most reliable momentary increase in well-being of any exercise we have tested.

The pleasant life: a life that successfully pursues the positive emotions about the present, past, and future.

Not only do happy people endure pain better and take more health and safety precautions when threatened, but positive emotions undo negative emotions.

The clearer the rules and the limits enforced by parents, the higher the child's self-esteem. The more freedom the child had, the lower his self-esteem.

In your own life, you should take particular care with endings, for their color will forever tinge your memory of the entire relationship and your willingness to reenter it.

Life inflicts the same setbacks and tragedies on the optimist as on the pessimist, but the optimist weathers them better.