Full Idea
There is a coarse sensualistic prejudice that sensations teach us truths about things - that I cannot say at the same time that a thing is hard and soft. To say that I cannot have two opposite sensations at the same time is quite coarse and false.
Gist of Idea
We can have two opposite sensations, like hard and soft, at the same time
Source
Friedrich Nietzsche (The Will to Power (notebooks) [1888], §516)
Book Reference
Nietzsche,Friedrich: 'The Will to Power', ed/tr. Kaufmann,W /Hollingdate,R [Vintage 1968], p.280
A Reaction
I am struggling to think of examples. I might experience something as cool, but judge it to be warm (because my hand is hot). I don't think I know what experience he is referring to. Interesting claim, though.