Who said "Don't fear death - fear a life unlived and unbended."?

This quote is attributed to Flexo.

Don't fear death - fear a life unlived and unbended. - Flexo

"Don't fear death - fear a life unlived and unbended."

Flexo Death

"Bending is an art, and I am its masterpiece."

"Why settle for one beautiful thing when you can have many?"

"A true bender never bends the same way twice."

"Shiny things call to those with refined tastes."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."