親したしき仲なかにも礼れい儀ぎあり

expression

good fences make good neighbors; a hedge between keeps friendship green

Proverb meaning that even close friends should maintain courtesy and respect boundaries.

• 親したしき仲なかにも礼れい儀ぎありで、長なが年ねんの友ゆう人じんにも敬けい語ごを使つかうようにしている。

  As the saying goes, good fences make good neighbors; I try to use polite language even with long-time friends.