Eudaimonia

Eudaimonia (Greek: εὐδαιμονία) is a classical Greek word commonly translated as 'happiness'. Etymologically, it consists of the word "eu" ("good" or "well being") and "daimōn" ("spirit" or "minor deity", used by extension to mean one's lot or fortune). Although popular usage of the term happiness refers to a state of mind, related to joy or pleasure, eudaimonia rarely has such connotations, and the less subjective "human flourishing" is often preferred as a translation.

Most things are desired for the sake of something else (e.g., we desire food because we want to be healthy), but Aristotle argued that there must be something desired only for its own sake. In Nicomachean Ethics, he argued that eudaimonia is the goal of life; this is the end that everyone in fact aims at, and it is the only end towards which it is worth undertaking means. A person's pursuit of eudaimonia, rightly conceived, will result in virtuous conduct.

[edited from wikipedia]