Prometheus:
I will resist
No further, but to your importunacy
All things which ye-desire to learn reveal.
And, Io, first to thee I will declare
Thy far-driven wanderings; write thou my words
In the retentive tablets of thy heart.
When thou hast crossed the flood that flows between
And is the boundary of two continents,
Turn to the sun's uprising, where he treads
Printing with fiery steps the eastern sky,
And from the roaring of the Pontic surge
Do thou pass on, until before thee lies
The Gorgonean plain, Kisthene called,
Where dwell the gray-haired three, the Phorcides,
Old, mumbling maids, swan-shaped, having one eye
Betwixt the three, and but a single tooth.
On them the sun with his brightbeams ne'er glanceth
Nor moon that lamps the night. Not far from them
The sisters three, the Gorgons, have their haunt;
Winged forms, with snaky locks, hateful to man,
Whom nothing mortal looking on can live.
Thus much that thou may'st have a care of these.