Final answer:
Aristotle thought virtuous development is crucial for achieving eudaimonia because it allows individuals to realize their potential and live a fulfilling life. Virtue leads to consistent excellence in character and decision-making, significantly contributing to a life of happiness and fulfillment.
Step-by-step explanation:
Aristotle believed that virtuous development is essential for achieving eudaimonia, or a flourishing life, which he defines as the ultimate purpose or highest good (telos) of human existence. This flourishing life goes beyond temporary feelings of happiness and underscores thriving according to one's nature. Aristotle argues that we execute our unique function as human beings through the perfection of rationality and the practice of virtue, such that our actions become consistently excellent. Practicing virtues creates a firm character, establishing habits that help us navigate complex moral landscapes and increase our proclivity to choose rightly in various situations. The development of virtue, through habit and practical experience, thereby leads to a life of happiness and fulfillment: c. Virtue leads to a life of happiness and fulfillment. Aristotle emphasizes that a flourishing life also incorporates external goods like friendship, success, and societal stability, but virtue is integral to realizing human potential and achieving eudaimonia. Mark LeBar, in 'Justice as a Virtue', reiterates the ancient Greek eudaimonist view, which links our reasons for action with our interest in a happy, or flourishing, life.