Who said "Peace is merely the absence of challenge."?

This quote is attributed to Doctor Octopus.

Peace is merely the absence of challenge. - Doctor Octopus

"Peace is merely the absence of challenge."

Doctor Octopus Peace

"The cunning warrior attacks neither body nor mind... but the HEART."

"I'm something of a scientist myself."

"Back to formula!"

"You know, I'm something of a scientist myself."

"Peace comes from a good conscience."

"Life is too short to hold grudges."

"A man's home is his sanctuary. It should be treated as such."

"The world is chaotic enough. At least your home should make sense."