History of Epistemic Value

I am working on scrounging together some resources on the history of epistemic value, and have my hat in my hand for suggestions.

As most know, Plato's Meno is the paragon starting point for discussion of quesitons related to the value of knowledge. I am hoping to locate other important detours in the history of philosophy in which this sort of discussion takes place.

Important quesitons include (for example): in virtue of what is knowledge valuable? Why is having knowledge better than having than mere true opinion?

As an aside:

I've put up links to drafts of some of my papers on VE and EV on my website; as always, comments are welcome!

http://staff.stir.ac.uk/adam.carter

Cheers,

Adam