Full Idea
Even one's thoughts one cannot reproduce entirely in words.
Gist of Idea
Thoughts cannot be fully reproduced in words
Source
Friedrich Nietzsche (The Gay (Joyful) Science [1882], §244)
A Reaction
I suppose this is the germ of Derrida, who seems to see little connection between thought and speech. I take this idea to be entirely correct. Our simplistic view of language reduces the fluidity and many dimensions of thought to a pile of lego bricks.
Book Reference
Nietzsche,Friedrich: 'The Joyful Science, and 1881-82 fragments (v 6)', ed/tr. Del Caro,Adrian [Stanford 2023], p.157