Who said "I have to be worthy of their sacrifice."?

This quote is attributed to Arrow.

I have to be worthy of their sacrifice. - Arrow

"I have to be worthy of their sacrifice."

Arrow Gratitude

"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."

"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"