The Wyrd Sisters

“Fillet of a fenny snake,
    In the caldron boil and bake;
    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 owlet's wing,—
    For a charm of powerful trouble,
    Like a hell-broth boil and bubble.”

Macbeth
Act IV, Scene I