Happiness can be Inherited.

Happiness can be inherited, new research says..."An important implication is that personality traits of being outgoing, calm and reliable provide a resource, we called it 'affective reserve,' that drives future happiness" Bates said. People with positive inherited personality traits may, in effect, also have a reserve of happiness to draw on in stressful times, he said.

Link: Science Daily

Simplicity is extremely important for happiness. Having few desires, feeling satisfied with what you have, is very vital: satisfaction with just enough food, clothing, and shelter to protect yourself from the elements. And finally, there is an intense delight in abandoning faulty states of mind and in cultivating helpful ones in meditation.”

- Dalai Lama