Plutarch (c. AD 46-120), in his Lives of the Noble Grecians and Romans, traced a parallelism between the most eminent men of the two countries.

I told her the strength of my purse, and proposed going to the play, which she consenting to, there was I a hopeful spring of thirteen, stuck up in a green box with a blazing whore.

Yours goes up and mine goes down / and then we do it the other way around. / Don't you give me that sigh, cause if we can't see eye-to-eye / then our missions will be always filled with strife, / cause a handcar is a metaphor for life.

As a firm's cost falls, it is willing to supply more, all else the same.