A bargain is something you have to find a use for once you have bought it

Necessity never made a good bargain.

What is the use of a new-born child?

He that possesses any Thing he has bought, pays Interest for the Use of it.

Hide not your talents. They for use were made. What's a sundial in the shade?

Timothy was so learned he could name a horse in 9 languages, and bought a cow to ride on.