"Intrinsic"..................

The findings are in keeping with something called self-determination theory, which holds that human beings need three basic things in order to be content:  they need to feel competent at what they do; they need to feel authentic in their lives; and they need to feel connected to others.  These values are considered "intrinsic" to human happiness and far outweigh "extrinsic" values such as beauty, money, and status.

-Sebastian Junger,  Tribe: On Homecoming and Belonging