Hard with hard doesn’t make a good wall.
More Portuguese Proverbs:
Pepper in someone else's eyes is a salve.Portuguese
Lay your hand on your bosom and you will not speak ill of another.
Portuguese
Broken friendship may be soldered but can never be made sound.
Portuguese
A friend is to be taken with his faults.
Portuguese
There is reason in the roasting of eggs.
Portuguese
The fox knows much, but more he that catcheth him.
Portuguese