Who said "Motivation comes from inside - nobody can give it to you."?

This quote is attributed to Bulldog Briscoe.

Motivation comes from inside - nobody can give it to you. - Bulldog Briscoe

"Motivation comes from inside - nobody can give it to you."

Bulldog Briscoe Motivation

"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!"

"I believe in working hard for what you want."

"Never underestimate the power of determination."

"I don't need a reason to fight."

"The most important thing is the mission. Nothing else matters."