I must not, by the way, be taken as implying that the earth is flat, or that all or any of our amazing credulities are delusions or impostures. I am only defending my own age against the charge of being less imaginative than the Middle Ages. I affirm that the nineteenth century, and still more the twentieth, can knock the fifteenth into a cocked hat in point of susceptibility to marvels and miracles and saints and prophets and magicians and monsters and fairy tales of all kinds. The proportion of marvel to immediately credible statement in the latest edition of the Encyclopædia Britannica is enormously greater than in the Bible. The medieval doctors of divinity who did not pretend to settle how many angels could dance on the point of a needle cut a very poor figure as far as romantic credulity is concerned beside the modern physicists who have settled to the billionth of a millimetre every movement and position in the dance of the electrons. Not for worlds would I question the precise accuracy of these calculations or the existence of electrons (whatever they may be). The fate of Joan is a warning to me against such heresy. But why the men who believe in electrons should regard themselves as less credulous than the men who believed in angels is not apparent to me. If they refuse to believe, with the Rouen assessors of 1431, that Joan was a witch, it is not because that explanation is too marvellous, but because it is not marvellous enough. The Stage Limits of Historical Representation.