A fly will not come into a closed mouth.
More Russian Proverbs:
If you don't have a hundred rubles, make sure you have a hundred friends.Russian
If the child does not cry, the mother won't know what it wants.
Russian
Moscow does not believe in tears.
Russian
Better to stumble than make a slip of the tongue.
Russian
Fedot, yet not the one.
Russian
The fathers ate the cranberries and the children are left with the aftertaste.
Russian