You give hay to the dog and bones to the ass.
More Latin Proverbs:
Through dangers to distinction.Latin
Where there's smoke, there's fire. [Ubi fumus, ibi ignis.]
Latin
You seek water from a stone.
Latin
The credit got by a lie lasts only till the truth comes out.
Latin
Hard is the path from poverty to renown.
Latin
It is often better to go by a circuitous than by a direct path.
Latin