Who said "The ascetic ideal expresses a will; what does it will?"?

This quote is attributed to Zarathustra.

The ascetic ideal expresses a will; what does it will? - Zarathustra

"The ascetic ideal expresses a will; what does it will?"

Zarathustra Philosophy

Character in Thus Spoke Zarathustra

"I teach you the Übermensch. Man is something that shall be overcome."

"One must have chaos within oneself to give birth to a dancing star."

"The snake that cannot shed its skin perishes."

"I love those who do not first look behind into the past before they look down at the abyss."

"I've seen the worst humanity has to offer."

"Sometimes I wonder if the world is worth saving."

"Every choice shapes our destiny."

"Order is the foundation of a good life."