Who said "To defeat an enemy, you must first understand him."?

This quote is attributed to Batman.

To defeat an enemy, you must first understand him. - Batman

"To defeat an enemy, you must first understand him."

Batman

"It's not who I am underneath, but what I do that defines me."

"Fear is a tool. When that light hits the sky, it's not just a call. It's a warning."

"Criminals thrive on the indulgence of society's understanding."

"I have not come to fight men. I have come to save them."