expression
do not do unto others what you would not have done unto you
A proverb from the Analects of Confucius, expressing the Golden Rule in its negative form. Used in formal or literary contexts to advise against imposing on others what one dislikes oneself.
「己の欲せざる所は人に施す勿れ」は、論語の一節としてよく知られている。
"Do not do unto others what you would not have done unto you" is well known as a passage from the Analects.
The positive formulation of the Golden Rule, 'Do unto others as you would have them do unto you,' which is less common in Japanese than the negative form.
From the Analects of Confucius (論語). The phrase is a direct quotation of the classical Chinese teaching, adapted into Japanese reading.