千せん慮りょの一いっ失しつ

noun

even a wise man sometimes errs; Homer sometimes nods

A proverb meaning that even a person of great wisdom or careful thought can make a mistake. Often used to console someone after a rare error or to acknowledge one's own slip. The phrase comes from the Chinese classic 'Records of the Grand Historian' (Shiji).

• 彼かれほどの専せん門もん家かでも、千せん慮りょの一いっ失しつということがある。

  Even an expert like him can make a mistake sometimes; it's a case of 'even Homer nods.'

• 千せん慮りょの一いっ失しつで、大だい事じな書しょ類るいにミスをしてしまった。

  Due to a rare slip, I made a mistake on an important document.