Who said "Kindness costs nothing, but it's worth everything."?

This quote is attributed to Star-Lord.

Kindness costs nothing, but it's worth everything. - Star-Lord

"Kindness costs nothing, but it's worth everything."

Star-Lord Kindness

"I have a plan - okay, I don't have a plan, but I'm really, really good at improvising."

"Come and get your love."

"I'm the best there is at what I do, and what I do is save the galaxy."

"We are 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."