Who said "Sometimes you need to be alone to know yourself."?

This quote is attributed to Joey Tribbiani.

Sometimes you need to be alone to know yourself. - Joey Tribbiani

"Sometimes you need to be alone to know yourself."

Joey Tribbiani Solitude

"How you doin'?"

"It's not a lie if you believe it."

"I'm not great at the advice. Can I interest you in a sarcastic comment?"

"Could I BE any more of a mess?"

"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."