Who said "Stand up for what's right, even when it's hard."?

This quote is attributed to Kenny McCormick.

Stand up for what's right, even when it's hard. - Kenny McCormick

"Stand up for what's right, even when it's hard."

Kenny McCormick Courage

"Mmph mmph mrmph!"

"I'm not fat, I'm just big boned"

"Dude, we're in third grade"

"This is so cool"

"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."