Tzu Chang asked Confucius about jen. Confucius said, "If you can practice these five things with all the people, you can be called jen." Tzu Chang asked what they were. Confucius said, "Courtesy, generosity, honesty, persistence, and kindness. If you are courteous, you will not be disrespected; if you are generous, you will gain everything. If you are honest, people will rely on you. If you are persistent you will get results. If you are kind, you can employ people.
The Master said, "Wealth and honor are things that all people desire, and yet unless they are acquired in the proper way I will not abide them. Poverty and disgrace are things that all people hate, and yet unless they are avoided in the proper way I will not despise them. If the gentleman abandons ren, how can he be worthy of that name? The gentleman does not violate ren even for the amount of time required to eat a meal. Even in times of urgency or distress, he does not depart from it."
The Master said, If out of the three hundred songs I had to take one phrase to cover all my teachings, I would say 'Let there be no evil in your thoughts.'