Welcome :)
YYzai Dictionary is an easy-to-use and powerful online Chinese dictionary.Excellent translation:
A beggar may sing before the thief.既是穷光蛋，何虑窃贼偷。
A liar is not believed when he speaks the truth.
骗子说真话，也没人相信。
A little leak will sink a great ship.
小漏沉大船。千丈之堤，溃于蚁穴。
A fool attempting to be witty is an object of profoundest pity.
蠢人装聪明，实在最可怜。
A bad thing never dies.
遗臭万年。（或译：坏事传千年。）
