Who said "Fear of death is what keeps you alive."?

This quote is attributed to Negan.

Fear of death is what keeps you alive. - Negan

"Fear of death is what keeps you alive."

Negan Fear

"I am the eeny, meeny, miny, moe of the apocalypse."

"You don't have to be afraid anymore. Not of me. Not of anything."

"I don't kill women. It's not in my rules."

"I'm gonna take what I want, and I'm gonna make it mine."

"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."