Who said "Be grateful for the small things, they matter most."?

This quote is attributed to Kenny McCormick.

Be grateful for the small things, they matter most. - Kenny McCormick

"Be grateful for the small things, they matter most."

Kenny McCormick Gratitude

"Mmph mmph mrmph!"

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

"Dude, we're in third grade"

"This is so cool"

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"