To have no sense of shame; to do something wrong or bad and still feel perfectly at ease without any sense of guilt

To be aware of one's shame is a step toward being brave; often cited from the [[礼记|禮記|li3 ji4]] as part of the three requirements for self-cultivation alongside [[力行近乎仁|力行近乎仁|li4 xing2 jin4 hu1 ren2]] ("vigorous practice is near to benevolence")

A classic teaching from the "Doctrine of the Mean" stating that a love of learning is close to wisdom, practicing with effort is close to benevolence, and having a sense of shame is close to courage