It's fair to take what you want
It is a Chinese idiom. Pinyin is Q ǔ y ù y ǒ Uji é, which means to get and give with restraint. It means to be greedy. It comes from Huainanzi Ben Jing Xun.
Idiom usage
It means not to be greedy
The origin of Idioms
"Huainanzi Ben Jing Xun" says: "there is a chastity in taking what you give, and sometimes it goes in and out."
Idiom explanation
To get and to give is to be temperate, which means to be greedy.
It's fair to take what you want
He who goes with heaven prospers, and he who goes against heaven perishes - shùn tiān zhě chāng,nì tiān zhě wáng
seize an opportunity to start doing sth. - chéng jiān tóu xì
Light soldiers and sharp soldiers - qīng zú ruì bīng
Leave the mountain to adjust the tiger - lí shān diào hǔ