He is my friend who grinds at my mill.
More Spanish Proverbs:
The mouse that only trusts to one poor hole, Can never be a mouse of any soul.Spanish
If you pay what you owe, what you're worth you'll know.
Spanish
He who wants to be rich in a year comes to the gallows in half a year.
Spanish
The wise knows that he does not know; the ignoramus thinks he knows.
Spanish
Losers are always in the wrong.
Spanish
You surrender your freedom where you deposit your secret.
Spanish