Full Idea
It is naivety to posit pleasure or spirituality or morality or any single particular from the sphere of consciousness as the highest value.
Gist of Idea
It is naïve to posit any one value from consciousness as the highest value
Source
Friedrich Nietzsche (Fragments from 1886-87 (v 17) [1887], 10[137])
A Reaction
His main reason is that we overrate what is conscious. I agree. I see myself less and less as a primarily conscious being. Just watch yourself while you cook a meal or drive a car. You are highly rational, but consciousness is a small part.
Book Reference
Nietzsche,Friedrich: 'Fragments from 1886-87 (v 17)', ed/tr. Leiner, George H. [Stanford 2025], p.302