Play with the fool at home, and he will play with you abroad.
More Spanish Proverbs:
He who doubts nothing knows nothing.Spanish
He who has shipped the devil, must carry him over the sound.
Spanish
A little loss frightens, a great one tames.
Spanish
As long as I was a daughter-in-law I never had a good mother-in-law, and as long as I was a mother-in-law I never had a good daughter-in-law.
Spanish
The fox is knowing, but more knowing he who catches him.
Spanish
He who looks demurely trust not with your money.
Spanish