Full Idea
Stoics say one sort of value is a contribution to the life in agreement, which applies to every good. Another is an intermediate potential or usefulness (such as wealth or health) contributing to the life according to nature.
Gist of Idea
Prime values apply to the life in agreement; useful values apply to the natural life
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
Assessing value by what it contributes to is interesting. There is also the appraiser's value.
Related Idea
Idea 20847 The appraiser's value is what is set by someone experienced in the facts [Stoic school, by Diog. Laertius]