Who said "Sometimes you have to laugh to keep from crying."?

This quote is attributed to Arrow.

Sometimes you have to laugh to keep from crying. - Arrow

"Sometimes you have to laugh to keep from crying."

Arrow Humor

"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."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."