niú​bù​hē​shuǐ​nán'àn​jiǎo

you can lead a horse to water but you cannot make it drink

牛不喝水难按角 牛不喝水難按角 niú​bù​hē​shuǐ​nán'àn​jiǎo
you can lead a horse to water but you cannot make it drink
(idiom) lit. it is hard to press a cow's horns down to make it drink; used to describe how you cannot force someone to do something against their will