近ちかしき仲なかにも垣かきを結ゆえ

expression

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

Proverb meaning that even close friends should maintain appropriate boundaries to preserve the relationship.

• 親しん友ゆうだからといって何なんでも話はなすのは考かんがえものだ。近ちかしき仲なかにも垣かきを結ゆえというだろう。

  Just because you're close friends doesn't mean you should share everything. As they say, good fences make good neighbors.