" Heredity or environment? I wondered wryly. We were all of us, to some degree, mad after his fashion. To be honest, it had to be a form of madness, to have so much and to strive so bitterly for just a little more, for a bit of an edge over the others. He carried this tendency to its extreme, that is all. He was a caricature of this mania in all of us. In this sense, did it really matter which of us was the traitor? "
― Roger Zelazny , The Hand of Oberon (The Chronicles of Amber #4)