Who said "Kindness is perhaps the most underrated human quality."?

This quote is attributed to Vision (Civil War).

Kindness is perhaps the most underrated human quality. - Vision (Civil War)

"Kindness is perhaps the most underrated human quality."

Vision (Civil War) Kindness

"I am Vision. I am not Ultron. I am not an AI."

"The body I inhabit was originally designed to cause destruction."

"It is difficult to assign a practical value to wisdom."

"I exist because of a choice made by a good man."

"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."