Who said "The greatest gift is knowing you've helped someone."?

This quote is attributed to Superman.

The greatest gift is knowing you've helped someone. - Superman

"The greatest gift is knowing you've helped someone."

Superman Gratitude

"I'm here to fight for truth and justice, and all that stuff."

"It's not who I am underneath, but what I do that defines me."

"The world doesn't need a savior, but it could use a friend."

"Even in darkness, there is always hope."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"