Good wine sells itself.
More Spanish Proverbs:
God cures, and the doctor takes the fee.Spanish
To be a merchant, the art consists more in getting paid than in making sales.
Spanish
Well begun is half done.
Spanish
To him that watches, everything is revealed.
Spanish
The tiger that has once tasted blood is never sated with the taste of it.
Spanish
Never show the truth naked -- just in its shirt.
Spanish