Find a happy person, and you will find a project.

...The more a person is inclined to gratitude, the less likely he or she is to be depressed, anxious, lonely, envious, or neurotic.

Thus the key to happiness lies not in changing our genetic makeup (which is impossible) and not in changing our circumstances (i.e., seeking wealth or attractiveness or better colleagues, which is usually impractical), but in our daily intentional activities.

Find a happy person, and you will find a project.

Exercise may very well be the most effective instant happiness booster of all activities.

The combination of rumination and negative mood is toxic. Research shows that people who ruminate while sad or distraught are likely to feel besieged, powerless, self-critical, pessimistic, and generally negatively biased.

I prefer to think of the creation or construction of happiness, because research shows that it's in our power to fashion it for ourselves.