Quote from : Jonathan Strange & Mr Norrell Book

There is nothing else in magic but the wild thought of the bird as it casts itself into the void. There is no creature upon the earth with such potential for magic. Even the least of them may fly straight out of this world and come by chance to the Other Lands. Where does the wind come from that blows upon your face, that fans the pages of your book? Where the harum-scarum magic of small wild creatures meets the magic of Man, where the language of the wind and the rain and the trees can be understood, there we will find the Raven King.