Macb.  If we should fail?

  Lady M.        We fail!

But screw your courage to the sticking-place,

And we 'll not fail.

William Shakespeare (1564-1616): Macbeth. Act i. Sc. 7.

How widely its agencies vary,—

To save, to ruin, to curse, to bless,—

As even its minted coins express,

Now stamp'd with the image of Good Queen Bess,

And now of a Bloody Mary.

Thomas Hood (1798-1845): Her Moral.