Who said "Solitude is not loneliness; it is necessary."?

This quote is attributed to William Faulkner.

Solitude is not loneliness; it is necessary. - William Faulkner

"Solitude is not loneliness; it is necessary."

William Faulkner Solitude

Novelist American 1897–1962

"The past is never dead. It's not even past."

"I decline to accept the end of man."

"Between grief and nothing I will take grief."

"You don't love because: you love despite."

"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."