◎ 瞒天过海 mántiān-guòhǎi[cross the sea under camouflage;deceive as one who cheats boldly and cleverly;very clear and daring in deceiving others] 比喻采取欺骗手段,暗中进行活动 -----------------国语辞典：比喻欺骗的手法很高明。明．阮大铖《燕子笺．第七出》：「我做提控最有名，瞒天过海无人问。」
◎ 瞒心昧己 mánxīn-mèijǐ[do evil against one's conscience;blot out one's conscience and deceive oneself] 昧着自己的良心干坏事 -----------------国语辞典：昧著良心做自己不愿做的事。元．武汉臣《老生儿．第一折》：「往常我瞒心昧己，信口胡开。把神佛毁谤，将僧道抢白。」也作「昧己瞒心」。