Act the way you WANT to feel.

What's fun for other people may not be fun for you- and vice versa.

One of the findings that really interests me is that, although we think we ACT because of the way we FEEL, we often FEEL because of the way we ACT. So an almost uncanny way to change your feelings is to act the way you WISH you felt.

When I find myself focusing overmuch on the anticipated future happiness of arriving at a certain goal, I remind myself to 'Enjoy now'. If I can enjoy the present, I don't need to count on the happiness that is (or isn't) waiting for me in the future".

Happy people make people happy, but I can’t make someone be happy, and no one else can make me happy.

People in religions that teach that believers in other faiths are condemned, for example, tend to have lower life satisfaction. People who believe in heaven and hell tend to be less happy than those believe only in heaven.

The belief that unhappiness is selfless and happiness is selfish is misguided. It's more selfless to act happy. It takes energy, generosity, and discipline to be unfailingly lighthearted.