Who said "Fear is merely the absence of understanding."?

This quote is attributed to Doctor Octopus.

Fear is merely the absence of understanding. - Doctor Octopus

"Fear is merely the absence of understanding."

Doctor Octopus Fear

"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."

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."