The Greatest DenominatorGreatest Denominator

Analects 15.24

ConfucianismAnalects 15.24
Tsze-kung asked, saying, "Is there one word which may serve as a rule of practice for all one's life?" The Master said, "Is not RECIPROCITY such a word? What you do not want done to yourself, do not do to others."

子貢問曰、有一言、而可以終身行之者乎。子曰、其恕乎、己所不欲、勿施於人。

The same idea in other traditions


JudaismLeviticus 19:18
Thou shalt not take vengeance, nor bear any grudge against the children of thy people, but thou shalt love thy neighbour as thyself: I am the LORD.
SikhismSGGS Ang 1384
Do not utter even a single harsh word; your True Lord and Master abides in all. Do not break anyone's heart; these are all priceless jewels. The minds of all are like precious jewels; to harm them is not good at all. If you desire your Beloved, then do not break anyone's heart.