The measure of a man’s real character is what he would do if he knew he would never be found out. 

　　衡量一个人真正的品格，要看他在知道绝不会被发现的情况下会做什么。

　　connive verb

　　[kəˈnaɪv]

　　form intrigues (for) in an underhand manner

　　纵容;默许;放任;共谋

　　例句：

　　Not to protest is to connive at the destruction of the environment.

　　对于破坏环境的行为不加反对就等于纵容。