If you want good service, serve yourself.
More Spanish Proverbs:
The bow that is always bent slackens or breaks.Spanish
God defend you from the devil, the eye of a harlot, and the turn of a die.
Spanish
He who has got four and spends five, has no occasion for a purse.
Spanish
A bad man's gift is like his master.
Spanish
Two blacks don't make a white.
Spanish
An old poacher makes the best gamekeeper.
Spanish