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
What you say comes with what you say - yán chū huò suí
If you don't get into the tiger's den, you can't get into the tiger's son - bù rù hǔ xué,bù dé hǔ zǐ
the imaginative power in writing has declined - jiāng láng cái yǎn
the waters and skies merge in one colour - shuǐ tiān yī sè