Who said "Happiness found in helping others lasts the longest."?

This quote is attributed to Arrow.

Happiness found in helping others lasts the longest. - Arrow

"Happiness found in helping others lasts the longest."

Arrow Happiness

"My name is Oliver Queen. After five years in hell, I have come home with only one goal: to save my city."

"I'm not the man I was."

"You have failed this city."

"I'm a monster."

"Babalú!"

"My greatest joy is making people smile."

"Laughter and love make a home."

"The best things in life are free."