Make your son you heir and not your steward.
More Portuguese Proverbs:
A good thing is known when it is lost.Portuguese
The mad dog bites its master.
Portuguese
A great thrust of a lance at a dead Moor.
Portuguese
There are ills that happen for good.
Portuguese
There is a remedy for everything; it is called death.
Portuguese
Work expands so as to fill the time available.
Portuguese