Full Idea
Korsgaard argues for the ultimate dependence of final value on the extrinsic property of being valued by a rational agent.
Gist of Idea
Maybe final value rests on the extrinsic property of being valued by a rational agent
Source
report of Christine M. Korsgaard (Creating the Kingdom of Ends [1992]) by Francesco Orsi - Value Theory 2.3 n4
Book Reference
Orsi,Francesco: 'Value Theory' [Bloomsbury 2015], p.33
A Reaction
This hyper-Kantian view doesn't strike me as very plausible. Not philosophical theory which entirely cuts animals out of the story has much appeal for me.