It turns out that the process of working toward a goal, participating in a valued and challenging activity, is as important to well-being as its attainment.

If we can accept as true that life circumstances are not the keys to happiness, we'll be greatly empowered to pursue happiness for ourselves.

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

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.

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.

In a nutshell, the fountain of happiness can be found in how you behave, what you think, and what goals you set every day of your life.

Happiness is not out there for us to find. The reason that it's not out there is that it's inside us.