Who keeps company with a wolf will learn to howl.
More Italian Proverbs:
You cannot discover new oceans unless you have the courage to lose sight of the shore.Italian
Wolves have howled at the moon for centuries, yet it is still there.
Italian
The gallows was made for the unlucky.
Italian
The person who lives with cripples will soon learn to limp.
Italian
Who hath little shame the world is all his own.
Italian
Happy is she who is in love with an old dotard.
Italian