Who said "Sometimes solitude is what we need to find ourselves."?

This quote is attributed to Supergirl.

Sometimes solitude is what we need to find ourselves. - Supergirl

"Sometimes solitude is what we need to find ourselves."

Supergirl Solitude

"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."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."