You are here to learn the subtle science and exact art of potion
making. As there is little foolish wand-waving here, many of you will
hardly believe this is magic. I don't expect you will really understand
the beauty of the softly simmering cauldron with its shimmering fumes,
the delicate power of liquids that creep through human veins,
bewitching the mind, ensnaring the sense.... I can teach you how to
bottle fame, brew glory, even put a stopper in death - if you aren't as
big a bunch of dunderheads as I usually have to teach.