Magnanimity

Magnanimity (derived from the Latin roots magn- great, and anima, soul) is the virtue of being great of mind and heart. It encompasses, usually, a refusal to be petty, a willingness to face danger, and actions for noble purposes. Its antithesis is pusillanimity. Both terms were coined by Aristotle, who called magnanimity "the crowning virtue."

Noah Webster's 1828 Dictionary of the American Language defines Magnanimity as such:

MAGNANIM'ITY, n. [L. magnanimitas; magnus, great, and animus, mind.] Greatness of mind; that elevation or dignity of soul, which encounters danger and trouble with tranquillity and firmness, which raises the possessor above revenge, and makes him delight in acts of benevolence, which makes him disdain injustice and meanness, and prompts him to sacrifice personal ease, interest and safety for the accomplishment of useful and noble objects.

In his Nicomachean Ethics, Aristotle considered it the suitable virtue for a great man, arising from his other virtues.