Who said "When you can make people smile, you can change the world."?

This quote is attributed to Iron Man.

When you can make people smile, you can change the world. - Iron Man

"When you can make people smile, you can change the world."

Iron Man Happiness

"I am Iron Man."

"Genius, billionaire, playboy, philanthropist."

"I'm not the one who should be worried."

"This is the most important thing I've ever done."

"Babalú!"

"My greatest joy is making people smile."

"Laughter and love make a home."

"The best things in life are free."