Who said "Strength is knowing when a riddle is unsolvable."?

This quote is attributed to Riddler.

Strength is knowing when a riddle is unsolvable. - Riddler

"Strength is knowing when a riddle is unsolvable."

Riddler Strength

"Riddles are the most honest form of communication - they demand truth wrapped in mystery."

"A mind that cannot solve a puzzle is a mind that cannot live."

"Questions are the doorway to knowledge, answers are merely the threshold."

"The greatest riddle is why people fear enlightenment."

"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."