Edna St. Vincent Millay

Before this cooling planet shall be cold,
Long, long before the music of the Lyre,
Like the faint roar of distant breakers rolled
On reefs unseen, when wind and flood conspire
To drive the ships inshore — long, long, I say,
Before this ominous humming hits the ear,
Earth will have come upon a stiller day,
Man and his engines be no longer here.
High on his naked rock the mountain sheep
Will stand alone against the final sky,
Drinking a wind of danger new and deep,
Staring on Vega with a piercing eye,
And gather up his slender hooves and leap
From crag to crag down Chaos, and so go by.