How to understand that integrity is the only truly noble person?

As the old saying goes, the cloud is not afraid of the oblique shadow, nor is the ghost knocking at the door in the middle of the night. Deceive elders, friends and customers, but not yourself. To be an upright person, you have a loud voice, confidence and strength, and your aura makes others think that you are a noble person. Change yourself before influencing others, and you are a noble person.