From Kong Qiu's The Analects of Confucius in the Spring and Autumn Period, it means that a gentleman knows virtue and a villain knows profit.

2, Andy for me, pull a hair and benefit the world, not for my use.

Judging from the Twenty-six Verses of Mencius' Dedicated Articles written by Mencius and his disciples during the Warring States Period, that is to say, if Andy showed it to me, even pulling out a hair would be good for the world, he wouldn't do it.

3, do not climb the mountain, I don't know the height of the sky; Don't face the deep stream, I don't know the thickness of the ground.

xunzi

4. Fly to the sky without flying; If you don't sing, it will be a blockbuster. (Sima Qian)