Who said "Strength isn't measured in muscles; it's measured in will."?

This quote is attributed to Hades.

Strength isn't measured in muscles; it's measured in will. - Hades

"Strength isn't measured in muscles; it's measured in will."

Hades Strength

"I'm a businessman. I don't care how you do it, just get it done."

"The dead don't talk, do they?"

"I'm a lover of the arts."

"How very touching. I'm sure your parents are very proud."

"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."