Who said "You need to learn when to trust people."?

This quote is attributed to Arrow.

You need to learn when to trust people. - Arrow

"You need to learn when to trust people."

Arrow Relationships

"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."

"The key to a happy marriage is communication."

"Marriage is about compromise and understanding."

"Life's greatest treasures are relationships."

"Trust is a luxury I can't afford."