《后汉书·列传·周黄徐姜申屠列传》
安于贫困，修身养性，不因为气候变化而变质，不因穷困而丧失气节。
安贫乐潜，味道守真，不为燥湿轻重，不为穷达易节。
He was content with poverty, cultivated his morality, and did not change his beliefs because of climate changes or lose his integrity because of poverty.