I love--but am not loved in turn.

CARLOS (full of ardor, going towards her).
You are!
As true as God is throned in heaven! I swear
You are--you are unspeakably beloved.

PRINCESS.
You swear it, you!--sure 'twas an angel's voice.
Oh, if you swear it, Carlos, I'll believe it.
Then I am truly loved!

CARLOS (embracing her with tenderness).
Bewitching maid,
Thou creature worthy of idolatry
I stand before thee now all eye, all ear,
All rapture and delight. What eye hath seen thee--
Under yon heaven what eye could e'er have seen thee,
And boast he never loved? What dost thou here
In Philip's royal court! Thou beauteous angel!
Here amid monks and all their princely train.
This is no clime for such a lovely flower--
They fain would rifle all thy sweets--full well
I know their hearts. But it shall never be--
Not whilst I draw life's breath. I fold thee thus
Within my arms, and in these hands I'll bear thee
E'en through a hell replete with mocking fiends.
Let me thy guardian angel prove.

PRINCESS (with a countenance full of love).