idle hands are the devil's tools
口语·劝诫勿懒惰
例句
Mom always said, 'Idle hands are the devil's tools,' so she kept us busy with chores.
典故来源
源自基督教道德训诫,强调懒惰易使人陷入罪恶,最早可追溯至16世纪英国谚语,与'闲散生恶'观念一致。