Full Idea
A concept is an invention that doesn't correspond entirely to anything; but to many things a little bit.
Gist of Idea
Concepts don’t match one thing, but many things a little bit
Source
Friedrich Nietzsche (Unpublished Notebooks 1885-86 [1886], 34[131])
Book Reference
Nietzsche,Friedrich: 'Fragments from 1885-86 (v 16)', ed/tr. Del Caro,Adrian [Stanford 2020], p.37
A Reaction
This seems to cover some concepts quite well, but others not at all. What else does 'square' correspond to?