" Only Muggles talk of the ‘mind reading.’ The mind is not a book, to be opened at will and examined at leisure. Thoughts are not etched on the inside of skulls, to be perused by any invader. The mind is complex and many-layered thing, Potter… or at least, most minds are… "

― J.K. Rowling , Harry Potter and the Order of the Phoenix (Harry Potter, #5)