Who said "Sometimes you have to be brave enough to stand alone."?

This quote is attributed to Knuckles.

Sometimes you have to be brave enough to stand alone. - Knuckles

"Sometimes you have to be brave enough to stand alone."

Knuckles Courage

"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!"

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."