Who said "Strength isn't just physical; it's mental and spiritual."?

This quote is attributed to SpongeBob SquarePants.

Strength isn't just physical; it's mental and spiritual. - SpongeBob SquarePants

"Strength isn't just physical; it's mental and spiritual."

SpongeBob SquarePants Strength

"I'm ready!"

"Ahahaha! I love you."

"The best time to wear a striped sweater is all the time."

"I'm a goofy goober, yeah!"

"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."