Conceal not your secret from your friend, or you deserve to lose him.
More Portuguese Proverbs:
Children married, cares increased.Portuguese
He who has a glass roof must not throw stones at his neighbour's.
Portuguese
A barley corn is better than a diamond to a cock.
Portuguese
Gifts from enemies are dangerous.
Portuguese
Rather a husband with one eye than with one son.
Portuguese
Better lose than lose more.
Portuguese