家贼难防

1. 家贼难防 (jiāzéi-nánfáng)

   1. 家属或内部的人作弊营私难以防范 thief in the family is difficult to detect; a thief from within is hard to guard against;it is difficult to forestall a thief within the house

家贼难防是成语。

家賊難防 (jiā zéi nán fáng)

1. 比喻內部的敵人或壞人最難防範。

   • 五燈會元．卷十四．同安志禪師法嗣：「問：『家賊難防時如何？』師曰：『識得不為冤。』」