Who said "The path to greatness is paved with perseverance."?

This quote is attributed to Underdog.

The path to greatness is paved with perseverance. - Underdog

"The path to greatness is paved with perseverance."

Underdog Perseverance

"There's no need to fear, Underdog is here!"

"When criminals in this city play, to steal the night and rob the day, they're out to make a dreadful mess, then Underdog is on the case."

"I'm just a pup who loves to help those in need."

"Even the smallest among us can make a big difference."

"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."