Who said "The night is darkest before the dawn."?

This quote is attributed to Arrow.

The night is darkest before the dawn. - Arrow

"The night is darkest before the dawn."

Arrow Hope

"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."

"Every day is a new opportunity."

"Hope is what gets us through difficult times."

"I'm not your enemy, kid. I'm trying to save you."

"Redemption is a long road."