Quote 4
MEPHISTOPHELES
Faustus, thou shalt, then kneel down presently,
Whilst on they head I lay my hand
And charm thee with this magic wand.
First, wear this girdle; then appear
Invisible to all are here.
The planets seven, the gloomy air,
Hell, and the Furies forkèd hair,
Pluto's blue fire and Hecate's tree,
With magic spells so compass thee
That no eye may thy body see.
So, Faustus, now, for all their holiness,
Do what thou wilt; thou shalt not be discerned. (3.2.14-25)
Mephistopheles's magic spell lumps the powers of Hell in with the powers of Pagan deities, which makes sense when you consider the belief some folks held that Greco-Roman paganism was simply a manifestation of the Christian Satan. But this fancy spell is all in the name of the rather anticlimactic trick of turning Faustus invisible, just so he can have a little fun at the Pope's expense. Compared to Faustus's rescue of Bruno, this isn't exactly the most exciting, or most noble of feats.
Quote 5
MEPHISTOPHELES
So now, Faustus, ask me what thou wilt.
FAUSTUS
First I will question with thee about hell.
Tell me, where is the place that men call hell?
[…]
I think hell's a fable.
MEPHISTOPHELES
Ay, think so still, till experience change thy mind. (2.1.109-111, 122-123)
One of the perks of Faustus's bargain with Lucifer is that he can ask Mephistopheles whatever he wants, and ol' Meph will have to deliver the scoop. And what does Faustus want to know about? Hell, of course. No doubt, he's hoping to learn that hell's a fable (understandable), but Mephistopheles just tells Faustus to wait for the wisdom of experience. In other words, time will tell. Faustus, though, with years of book learning behind him isn't used to waiting around for the wisdom of experience. He'd rather just use the Internet.
Quote 6
MEPHISTOPHELES
Upon the bridge called Ponte Angelo
Erected is a castle passing strong,
Where thou shalt see such store of ordnance
As that the double cannons, forged of brass,
Do match the number of the days contained
Within the compass of one complete year,
Beside the gates and high pyramides
That Julius Caesar brought from Africa. (3.1.38-45)
Rome is a place with some major power, huh? This power is symbolized by the "passing strong" castle that guards the bridge into Rome and contains twice as many cannons as the number of days in the year. This palace sits next to gates and pyramids that Julius Caesar brought from Africa, which are a symbol of the glory of the Roman Empire and its ability to conquer the world.