Full Idea
Another sense of value is the appraiser's value, which someone experienced in the facts would set, as when one says that wheat is exchanged for barley with a mule thrown in.
Gist of Idea
The appraiser's value is what is set by someone experienced in the facts
Source
report of Stoic school (fragments/reports [c.200 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 07.105
Book Reference
'The Stoics Reader', ed/tr. Inwood,B/Gerson,L.P. [Hackett 2008], p.118
A Reaction
No relativist nonsense here. Conventional values are set by experts, not by hoi polloi.