Character is the art of practicing the four cardinal virtues. Practicing the four cardinal virtues (courage, temperance, wisdom, and justice) leads to moral virtue, which is best encapsulated by the concept of arete. And arete cultivated over a lifetime can lead to eudaimonia: human flourishing.
Courage frees character. Temperance balances character. Wisdom guides character. Justice socially stabilizes character.
Through these four virtues an excellent human emerges as a venerated and valuable catalyst for human flourishing. The kind of human who creates their own values, followers their own conscience as pure law, and recreates themselves out of courage, temperance, wisdom, and justice