Still waters are the deepest; Still waters run deep.
More Polish Proverbs:
Add up your pennies, and buy a hen.Polish
Pray once if you are going to fight, pray twice if you are going to sail, and pray thrice if you are going to get married.
Polish
Even the goats will jump on a slanted tree.
Polish
my home is my castle.
Polish
You will see something as surely as a pig will see Heaven.
Polish
In Russia as you must, in Poland as you like.
Polish