Confucius said, "A gentleman has nine things, all of which are the objects of his careful consideration. He is eager to see clearly about the use of eyes. He is eager to hear clearly about the use of his ears. As for his face, he hopes it is gentle. As for his behavior, he is eager that it should be respected. Regarding his speech, he hoped it was sincere. He wants to be careful about the way he does business. He is anxious to ask others about what he suspects. When he is angry, he will think of difficulties (his anger may involve him). When he sees that he can get benefits, he will think of justice. "