Not everything that shines is gold.
More Portuguese Proverbs:
Better to be queen for an hour than a countess for life.Portuguese
Rosary is hand, the devil at heart.
Portuguese
The law devised, its evasion contrived.
Portuguese
Broken friendship may be soldered but can never be made sound.
Portuguese
All bite the bitten dog.
Portuguese
Who will not when he can, can't when he will.
Portuguese