A biography for Aristotle on the Megalopsychoshasn’t been written yet.
“Without virtue, it is hard to bear the results of good fortune suitably. Those who lack virtue become arrogant and wantonly aggressive when they have these other goods. They think less of everyone else, and do whatever they please. They do this because they are imitating the magnanimous person though they are not really like him.”
“He is not prone to remember evils, since it is proper to a magnanimous person not to nurse memories, especially not of evils, but to overlook them. He does not speak evil even of his enemies, except when he responds to their wanton aggression.He especially avoids laments or entreaties about necessities or small matters.”