Faust.

Thou son of filth and fire, thou monster, thou!

Mephistopheles.

And then her skill in reading faces

Is not the least of all her graces!

When I come near, she feels, she knows not how,

And through my mask can read it on my brow

That I must be, if not the very Devil,

A genius far above the common level.

And now to-night——