Who said "Solitude teaches you what company was hiding from you."?

This quote is attributed to Agatha Harkness.

Solitude teaches you what company was hiding from you. - Agatha Harkness

"Solitude teaches you what company was hiding from you."

Agatha Harkness Solitude

"Well, hello, dearie."

"The real question is, what are you willing to do to keep what you love?"

"Power isn't given, it's taken."

"I'm not a witch. Well, not a traditional one anyway."

"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."