He fishes in troubled waters. [If you wish to catch gudgeons stir up the mud.]
More Latin Proverbs:
Hear both sides of a question.Latin
Poverty is death in another form.
Latin
The deepest rivers flow with the least sound.
Latin
Mice care not to play with kittens.
Latin
Bad is want which is born of plenty.
Latin
If the end is good, everything will be good.
Latin