As hungry as a wolf.
More Russian Proverbs:
Running away is not glorious, but often very healthy.Russian
God gives to those who get up early.
Russian
You don't learn anything from buying, but you do from selling.
Russian
Judges and physicians kill with impunity.
Russian
Cry not for the hair when the head is off.
Russian
If God listened to every shepherd's curse, our sheep would all be dead.
Russian