From 《
孟子·
滕文公下》 (Mencius, Duke Teng Wen II). Mencius' definition of the
大丈夫 (great person):
富贵不能淫,
贫贱不能移,
威武不能屈 — '(One who is) not corrupted by wealth and status, not moved by poverty and humble station, not bent by force and power'. The middle term of the triad — the test of hardship.