Who said "The Master Emerald isn't just a treasure—it's my duty."?

This quote is attributed to Knuckles.

The Master Emerald isn't just a treasure—it's my duty. - Knuckles

"The Master Emerald isn't just a treasure—it's my duty."

Knuckles Work

"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!"

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."