Who said "The path to becoming strong is lonely."?

This quote is attributed to Zoro.

The path to becoming strong is lonely. - Zoro

"The path to becoming strong is lonely."

Zoro Solitude

"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."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."