Scheffler's idea of the independence

E​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​xplain Scheffler's idea of the independence of the personal point of view, illustrating your discussion with reference to Williams on utilitarian and Kantian conceptions of morality. How would Korsgaard respo​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​nd to this concern? Does she succeed in showing that valuing concrete ends (in the way bound up with having a "practical identity") commits us to valuing humanity as an end in itself? Why or why not​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​?