ハンロンの剃刀かみそり

expression, noun

Hanlon's razor

A philosophical razor: "Never attribute to malice that which can be adequately explained by stupidity." Used as a fixed expression.

• ハンロンの剃刀かみそりを思おもい出だして、彼かれの失しっ敗ぱいは悪あく意いではなく不ふ注ちゅう意いだと考かんがえた。

  Remembering Hanlon's razor, I thought his mistake was carelessness, not malice.