What is Aristotle's Golden Mean Theory?

Aristotle's Golden Mean Doctrine:

• Concept: Moral virtue is a desirable middle state between two extremes — deficiency and excess.
• Examples: Courage is golden mean between cowardice (deficiency) and rashness (excess); Generosity is mean between stinginess and extravagance.
• Eudaimonia: Practicing golden mean leads to human flourishing and ultimate happiness.