You reap the crop of another.
More Latin Proverbs:
No reliance can be placed on appearance.Latin
What's done can't be mended.
Latin
A well-beaten path does not always make the right road.
Latin
It is a disgrace to be praised by those who deserve no praise.
Latin
Rather to die than to be dishonoured. [Potius mori quam foedari.]
Latin
Many words, little credit.
Latin