Mencius 2A.9

Mencius said, 'Bo Yi would not serve a prince whom he did not approve, nor associate with a friend whom he did not esteem. He would not stand in a bad prince's court, nor speak with a bad man. To stand in a bad prince's court, or to speak with a bad man, would have been to him the same as to sit with his court robes and court cap amid mire and ashes. Pursuing the examination of his dislike to what was evil, we find that he thought it necessary, if he happened to be standing with a villager whose cap was not rightly adjusted, to leave him with a high air, as if he were going to be defiled. Therefore, although some of the princes made application to him with very proper messages, he would not receive their gifts. He would not receive their gifts, counting it inconsistent with his purity to go to them. Hui of Liu Xia was not ashamed to serve an impure prince, nor did he think it low to be an inferior officer. When advanced to employment, he did not conceal his virtue, but made it a point to carry out his principles. When neglected and left without office, he did not murmur. When straitened by poverty, he did not grieve. Accordingly, he had a saying,"You are you, and I am I. Although you stand by my side with breast and aims bare, or with your body naked, how can you defile me?" Therefore, self-possessed, he companied with men indifferently, at the same time not losing himself. When he wished to leave, if pressed to remain in office, he would remain. He would remain in office, when pressed to do so, not counting it required by his purity to go away.'

Mencius said, 'Bo Yi was narrow-minded, and Hui of Liu Xia was wanting in self-respect. The superior man will not manifest either narrow-mindedness, or the want of self-respect.'