Who said "Sometimes the smallest acts of kindness mean the most."?

This quote is attributed to Butters Stotch.

Sometimes the smallest acts of kindness mean the most. - Butters Stotch

"Sometimes the smallest acts of kindness mean the most."

Butters Stotch Gratitude

"I'm not bad, I'm just drawn that way"

"Aw, hamburgers!"

"You're grounded, mister!"

"I have to go do my chores now"

"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"