Wild ducks and tomorrow both come without calling.
More Russian Proverbs:
A beaten one is worth two unbeaten ones.Russian
Don't praise your furnace when the house is cold.
Russian
Don't pluck the apple while it is green; when it is ripe it will fall of itself.
Russian
Freedom for the free and heaven for the saved.
Russian
Make peace with man and war with your sins.
Russian
However much,good you feed the wolf, he still looks at the wood.
Russian