Who said "Mortality teaches us to make every moment count."?

This quote is attributed to Knuckles.

Mortality teaches us to make every moment count. - Knuckles

"Mortality teaches us to make every moment count."

Knuckles Death

"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!"

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."