Who said "I've learned to expect nothing and be grateful."?

This quote is attributed to Catwoman.

I've learned to expect nothing and be grateful. - Catwoman

"I've learned to expect nothing and be grateful."

Catwoman Gratitude

"Don't be afraid. Fear is a tool. They use it against you. But if you practice it, master it, you own it."

"You know what your problem is? You always want to save everyone."

"There's no place in this world for people like you and me."

"I'm not what you'd call a 'people person.'"

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"