Who said "Getting knocked down is just part of the fight."?

This quote is attributed to Knuckles.

Getting knocked down is just part of the fight. - Knuckles

"Getting knocked down is just part of the fight."

Knuckles Perseverance

"I'm the last one standing!"

"Gotta protect this Master Emerald!"

"Nobody messes with the Master Emerald while I'm around!"

"I may not be the smartest guy, but I know what's right!"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."