Who said "The only direction I'm going is forward."?

This quote is attributed to Zoro.

The only direction I'm going is forward. - Zoro

"The only direction I'm going is forward."

Zoro Motivation

"I am not going to die. I'm going to keep fighting until I become the world's greatest swordsman!"

"Shitty glasses."

"I don't care what the world thinks. I'm going to be the world's greatest swordsman!"

"A swordsman's true path is one of solitude."

"I believe in working hard for what you want."

"Never underestimate the power of determination."

"I don't need a reason to fight."

"The most important thing is the mission. Nothing else matters."