猿も木から落ちる

Japanese 🇯🇵
/saɾɯ mo ki kaɾa otɕiɾɯ/ (Saru mo ki kara ochiru)

Even monkeys fall from trees (lit.)

Even experts make mistakes. Monkeys are skilled climbers, so the idea is that even someone very good at something can slip up occasionally. Used to remind someone that making mistakes is human, even for those who are highly skilled.

Example:

猿も木から落ちるというように、彼も試験に落ちた
Even monkeys fall from trees: he also failed the exam.