Drums in his ear, at which he starts and wakes;
And, being thus frighted, swears a prayer or two,
And sleeps again. This is that very Mab
That plats the manes of horses in the night;
And bakes the elf-locks in foul sluttish hairs,
Which, once untangled, much misfortune bodes:
This is the hag, when maids lie on their backs,
That presses them, and learns them first to bear,
Making them women of good carriage:
This is she,--

Romeo.
Peace, peace, Mercutio, peace,
Thou talk'st of nothing.

Mercutio.
True, I talk of dreams,
Which are the children of an idle brain,
Begot of nothing but vain fantasy;
Which is as thin of substance as the air,
And more inconstant than the wind, who wooes
Even now the frozen bosom of the north,
And, being anger'd, puffs away from thence,
Turning his face to the dew-dropping south.

Benvolio.
This wind you talk of blows us from ourselves:
Supper is done, and we shall come too late.

Romeo.