“天下乌鸦一般黑”怎么翻译

天下乌鸦一般黑
Evil people are samely bad all over the world.

The world is much the same everywhere. 天下乌鸦一般黑

http://forum.ycwb.net/printthread.php?threadid=48797

all the crowes are black

evil people are bad the world over(英语俗语)

Evil people are samely bad all over the world.

small ones never differ