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 … - William Shakespeare

Double, double, toil and trouble;
Fire burn, and cauldron bubble!

Nothing can come of nothing.

The robb'd that smiles, steals something from the thief; He robs himself that spends a bootless grief.

Alas, poor Yorick! I knew him, Horatio: a fellow
of infinite jest, of most excellent fancy: he hath
borne me on his back a thousand times; and now, how
abhorred in my imagination it is! my gorge rims at
it. Here hung those lips that I have kissed I know
not how oft. Where be your gibes now? your
gambols? your songs? your flashes of merriment,
that were wont to set the table on a roar? Not one
now, to mock your own grinning? quite chap-fallen?