Who said "Groot knows that small acts matter."?

This quote is attributed to Groot.

Groot knows that small acts matter. - Groot

"Groot knows that small acts matter."

Groot Kindness

"I am Groot."

"We are Groot."

"I am Groot."

"Groot, groot, groot."

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."