Trust your best friend as you would your worst enemy.
More Mexican Proverbs:
Let him attack who will; the strong wait.Mexican
To the hungry man no bread is bad.
Mexican
The closed mouth doesn't catch any flies.
Mexican
A bird in hand is worth more than a hundred in flight.
Mexican
The mule wasn't born wild, the stick made her that way.
Mexican
Man can adjust to anything except not eating.
Mexican