He who hangs out a branch wants to sell his wine.
More Spanish Proverbs:
Cut your coat according to your cloth.Spanish
If you are not good for yourself, how can you be good for others?
Spanish
Never beg from one who was a beggar.
Spanish
By the street of "By-and-By" one arrives at the house of "Never."
Spanish
He who goes with wolves learns to howl.
Spanish
Hell is full of the ungrateful.
Spanish