Research suggests that people are typically unaware of the reasons why they are doing what they are doing, but when asked for a reason, they readily supply one.

Variety improves the things that we do too often, but it rules the things that we don't do often enough.

The fact that we often judge the pleasure of an experience by its ending can cause us to make some curious choices.

We don't believe other people's experiences can tell us all that much about our own. I think this is an illusion of uniqueness.

Lower your cortisol level. The happiest people have the lowest level of cortisol, a stress hormone that raises blood pressure and weakens the immune system. Cut the stress-more yoga, less road rage-and you'll cut your cortisol production.

Happiness refers to feelings, virtue refers to actions, and those actions can cause those feelings. But not necessarily and not exclusively.

We are happy when we have family, we are happy when we have friends and almost all the other things we think make us happy are actually just ways of getting more family and friends.