Who said "Strength isn't physical. It's in your will and your word."?

This quote is attributed to Marsellus Wallace.

Strength isn't physical. It's in your will and your word. - Marsellus Wallace

"Strength isn't physical. It's in your will and your word."

Marsellus Wallace Strength

"I don't give a damn what you know or don't know. What matters is what you do about it."

"A man's word is his bond. Without it, he's nothing."

"Success comes to those who take what they want and hold onto it."

"Fear is the tool of weak men. I don't deal in weakness."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."