From
孟子 (Mencius, Duke Teng Wen II). Mencius' definition of the
大丈夫 (true great person):
富贵不能淫,
贫贱不能移,
威武不能屈 - not corrupted by wealth and status, not moved by poverty and humble station, not bent by force and power. The three tests of character, the Confucian gold standard.