Ren shu (仁恕) is a classical Confucian virtue combining two foundational ethical concepts: ren (benevolence, humaneness) and shu (reciprocity, empathetic forgiveness). Literally, ren refers to the innate moral quality of caring for others as oneself, while shu embodies the principle of 'do not impose on others what you do not desire for yourself' — a proactive, compassionate form of tolerance and understanding. Together, ren shu signifies benevolent forgiveness: not merely excusing wrongdoing, but extending grace rooted in deep empathy and moral integrity.

This term appears primarily in philosophical, historical, or literary contexts — especially when describing exemplary conduct of sages, rulers, or virtuous individuals. It carries strong moral weight and formal register; it is rarely used in casual speech. Ren shu reflects an ideal of moral maturity where forgiveness arises not from weakness or indifference, but from strength of character and profound concern for human dignity.