There are certain questions that, in our present state of physiological knowledge, scientific men, perhaps, do well not to touch, and yet that display as we turn them over such strange uncertain glitterings of suggestion, that it is hard for an irresponsible writer to leave them altogether alone.
— Herbert George Wells
H. G. Wells, 1901 © National Portrait Gallery, London (reproduction of a photograph by Eliot & Fry, NPG x45778).