Who said "We are remembered not by how long we live, but by what we do."?

This quote is attributed to Underdog.

We are remembered not by how long we live, but by what we do... - Underdog

"We are remembered not by how long we live, but by what we do."

Underdog Death

"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."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."