Who said "Keep pushing forward, even when the path is unclear."?

This quote is attributed to Knuckles.

Keep pushing forward, even when the path is unclear. - Knuckles

"Keep pushing forward, even when the path is unclear."

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."