Who said "Sometimes solitude's the best teacher you'll ever have."?

This quote is attributed to Bulldog Briscoe.

Sometimes solitude's the best teacher you'll ever have. - Bulldog Briscoe

"Sometimes solitude's the best teacher you'll ever have."

Bulldog Briscoe Solitude

"Hey there, chief! What's the word?"

"I'm not just a pretty face, you know."

"You gotta live a little, Frasier!"

"That's what I'm talkin' about!"

"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."