"The Grape that can with Logic absolute The Two-and-Seventy jarring Sects confute: The sovereign Alchemist that in a trice Life's leaden metal into Gold transmute."

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I've never wanted to be a witch, but an alchemist, now that's a different matter. To invent this wizard world, I've learned a ridiculous amount about alchemy. Perhaps much of it I'll never use in the books, but I have to know in detail what magic can and cannot do in order to set the parameters and establish the stories' internal logic.

— J. K. Rowling