Copper begets copper, and not (the labour of) men’s bones.
More Spanish Proverbs:
When they offer you a ring, hold out your finger.Spanish
What is much desired is not believed when it comes.
Spanish
Nurse, you are mistress whilst the child sucks, and after that nothing.
Spanish
It's enough to make a parson swear, or a quaker kick his mother.
Spanish
The earth produces all things and receives all again.
Spanish
A bad mother wishes for good children.
Spanish