Who said "Strength is knowing when to hold on and let go."?

This quote is attributed to Jack Skellington.

Strength is knowing when to hold on and let go. - Jack Skellington

"Strength is knowing when to hold on and let go."

Jack Skellington Strength

"I am the Pumpkin King!"

"How wonderful! How strange! Oh, how I love it so!"

"There's something kind of funny about the whole thing."

"I've grown so weary of the same old thing."

"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."