This project explores the topic of dependency of happiness on external goods in Nicomachean Ethics. In this project I defend the following thesis: the dependency of happiness on external goods, in EN, is interpreted in the light of its political self-sufficiency, and in the light of our political humanity; this dependency is of three kinds: 1) enhancing-instrumental, 2) constitutive, and 3) subsistent. The political self-sufficiency of happiness means that, the ultimate good of man, the good of the ruling science of (...) Politics, is self-sufficient based on the self-sufficiency of the city. According to Aristotle, every human being, by nature, is political. The nature of every human being is fundamentally relational. We are what we are, among and with others in the city. This constitutive political human nature functions best only in the city. Based on this political anthropology I interpret the dependency of the human political good on external goods in EN. (shrink)