Who said "Solitude is not loneliness, but communion with oneself."?

This quote is attributed to Irwin.

Solitude is not loneliness, but communion with oneself. - Irwin

"Solitude is not loneliness, but communion with oneself."

Irwin Solitude

"Nergal's my best friend!"

"I'm a little Jewish boy with a big heart!"

"Gee, that's swell!"

"I love my mommy and daddy!"

"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."