A fortress on its guard is not surprised.
More Spanish Proverbs:
A hangman is a good trade, he doth his work by daylight.Spanish
A peasant will stand on the top of a hill for a very long time with his mouth open before a roast duck will fly in.
Spanish
When two friends dip into their purse, one laughs, the other cries.
Spanish
Of the malady a man fears, he dies.
Spanish
Never advise a man to go to the wars, or to marry.
Spanish
If your wife tells you to throw yourself off a cliff, pray to God that it is a low one.
Spanish