Who said "Pain is a teacher for those willing to learn."?

This quote is attributed to Stick.

Pain is a teacher for those willing to learn. - Stick

"Pain is a teacher for those willing to learn."

Stick Courage

"A man without sight sees more than most men with eyes."

"Your blindness is not a weakness. It is a gift."

"The mind is sharper than the blade."

"Fear is the enemy of progress."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."