Who said "Kindness costs nothing but yields infinite returns."?

This quote is attributed to Adam Warlock.

Kindness costs nothing but yields infinite returns. - Adam Warlock

"Kindness costs nothing but yields infinite returns."

Adam Warlock Kindness

"I am Adam Warlock, born anew to understand the universe."

"My existence is a canvas upon which destiny paints its masterpiece."

"To live is to struggle, to struggle is to grow."

"I have learned that perfection is a cage."

"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."