Who said "Are you sure that's a real spell?"?

This quote is attributed to Harry Potter.

Are you sure that's a real spell? - Harry Potter

"Are you sure that's a real spell?"

Harry Potter

"I'm not going back there."

"I didn't know I was a wizard until I got your letter."

"I think I can be brave."

"It's our choices that show what we truly are, far more than our abilities."