It seems that in Latin “photograph” would be said “imago lucis opera expressa”; which is to say: image revealed, “extracted,” “mounted,” “expressed” (like the juice of a lemon) by the action of light. And if Photography belonged to a world with some residual sensitivity to myth, we should exult over the richness of the symbol: the loved body is immortalized by the mediation of a precious metal, silver (monument and luxury); to which we might add the notion that this metal, like all the metals of Alchemy, is alive.
– Roland Barthes, Camera Lucida