Aristotle's Nicomachean Ethics -

True happiness is not a temporary emotion but a state achieved over a complete life. The Nature of Virtue (Arete)

Just as a knife is "good" if it cuts well, a human is "good" if they perform their unique function well. Aristotle's Nicomachean Ethics

Virtue is a stable "state" of character that allows a person to choose the right action consistently. True happiness is not a temporary emotion but

The Path to Eudaimonia: Virtue and the Golden Mean in Aristotle’s Ethics The Ultimate End: Happiness as Flourishing The Path to Eudaimonia: Virtue and the Golden

Aristotle begins by stating that all human activities aim at some "good". However, most goods (like money or fame) are merely means to an end. The only thing pursued for its own sake is .

Virtue is not something we are born with; it is a developed through practice.