Who said "There's beauty in the struggle itself."?

This quote is attributed to Luffy.

There's beauty in the struggle itself. - Luffy

"There's beauty in the struggle itself."

Luffy Beauty

"I'm gonna be King of the Pirates!"

"A man's dream will never die!"

"I don't care what happens to me, I'm gonna help my friend!"

"Being alone is better than being with the wrong people."

"Beauty comes in many forms."

"Beauty comes from within."

"True beauty lies in authenticity."

"Beauty exists in the most unexpected places."