Who said "Kindness costs nothing but gives everything."?

This quote is attributed to Vision (WandaVision).

Kindness costs nothing but gives everything. - Vision (WandaVision)

"Kindness costs nothing but gives everything."

Vision (WandaVision) Kindness

"I am Vision. I am not Jarvis anymore."

"What is grief, if not love persevering?"

"I don't fully understand the human capacity for deception."

"Perhaps I am meant to be alone."

"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."