Who said "Loneliness is a prison far worse than any castle walls."?

This quote is attributed to Beast.

Loneliness is a prison far worse than any castle walls. - Beast

"Loneliness is a prison far worse than any castle walls."

Beast Solitude

"It's not right for a woman to read. Soon she starts getting ideas, and thinking."

"I want much more than this provincial life."

"How can you read this? There are no pictures!"

"I am no prince."

"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."