A person who is always nice is not always nice.
More Polish Proverbs:
Even the goats will jump on a slanted tree.Polish
Fortune is a giver and a taker.
Polish
The devil can swallow a woman but he can't digest her.
Polish
If everyone swept in front of his house, the whole town would be clean.
Polish
If you are going to fight, pray once; if you are going to sail, pray twice; if you are getting married, then pray thrice.
Polish
Love enters a man through his eyes, woman through her ears.
Polish