Who said "The truth matters, even when it's difficult to face."?

This quote is attributed to Supergirl.

The truth matters, even when it's difficult to face. - Supergirl

"The truth matters, even when it's difficult to face."

Supergirl Truth

"I'm not just Kara Danvers. I'm also Supergirl."

"Being a hero isn't just about having powers. It's about what you choose to do with them."

"I have to believe that there's good in people, even when they give me reason not to."

"My family is what makes me strong."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."