You must howl with the wolves when you are among them.
More Danish Proverbs:
A barren sow is never kind to pigs.Danish
Happiness does not give, it only lends.
Danish
Take not your sickle to another man's corn.
Danish
A lord without land, is like a cask without wine.
Danish
He that is once at sea, must either sail or sink.
Danish
All women may be won.
Danish