Swear by my sword.

Ghost.
[Beneath.] Swear.

Ham.
Hic et ubique? then we'll shift our ground.--
Come hither, gentlemen,
And lay your hands again upon my sword:
Never to speak of this that you have heard,
Swear by my sword.

Ghost.
[Beneath.] Swear.

Ham.
Well said, old mole! canst work i' the earth so fast?
A worthy pioner!--Once more remove, good friends.

Hor.
O day and night, but this is wondrous strange!

Ham.
And therefore as a stranger give it welcome.
There are more things in heaven and earth, Horatio,
Than are dreamt of in your philosophy.
But come;--
Here, as before, never, so help you mercy,
How strange or odd soe'er I bear myself,--
As I, perchance, hereafter shall think meet