even Homer nods: even the experts make mistakes
eş: 猿も木から落ちる, 河童（かっぱ）の川流れ, 上手の手から水が漏れる, 竜馬（りゅうめ）の躓（つまず）き, 念者（ねんしゃ）の不念（ぶねん）, 孔子（くじ）の倒れ
köken: Phrase consisting of 弘法 (Kōbō), the first part of the posthumous name of Kūkai, an important Buddhist monk and one of three famous Heian period calligraphers + に (ni, “in”, locative particle) も (mo, “even”, inclusive particle) + 筆 (fude, “writing brush; writing with a brush”) + の (no, genitive or possessive particle) + 誤り (ayamari, “mistake”, the 連用形 (ren'yōkei, “continuative or stem form”) of…
even Homer nods (even experts make mistakes)
köken: Literally, "even monkeys fall from trees". Compare Japanese 猿も木から落ちる.