孔子说 Confucius said

“己所不欲，勿施于人”是孔子思想之根本。如果人人都做到这一点，那么中国社会早就和谐了；如果各国政府用这种思维为指导，世界会早日和平。

Don't do it to others if you don't like other people to treat you the same way ( I have just corrected the grammar here, you might be interested to know the actual English translation of this saying is widely accepted as' Never impose on others what you would not choose for yourself' We also have 'Do unto others as you would have them do unto you'), that is the fundamental thoughts thinking of Confucius.
If every Chinese could do that, Chinese society would have been ; if every country's government could follow this doctrine, our world will be at peace sooner/earlier/quicker early.