Thou shalt proceed, the highway of the Sun;
Then cross the sounding Ocean, till thou reach
Cisthené and the Gorgon plains, where dwell
Phorcys’ three daughters, maids with frosty eld
Hoar as the swan, with one eye and one tooth
Shared by the three; them Phœbus beamy-bright
Beholds not, nor the nightly Moon. Near them
Their winged sisters dwell, the Gorgons dire,
Man-hating monsters, snaky-locked, whom eye
Of mortal ne’er might look upon and live.