Double, double, toil and trouble
Fire burn and cauldron bubble…
Eye of newt, and toe of frog,
Wool of bat, and tongue of dog,
Adder’s fork, and blind-worm’s sting,
Lizard’s leg, and howlet’s wing
For a charm of powerful trouble,
Like a hell-broth boil and bubble.
~William Shakespeare, “Macbeth”
