You Know How Little Time We Have To Stay (From The Rubaiyat of Omar Khayyam)

"You know how little while we have to stay
"And, once departed, may return no more."
Ah, my Belovéd, fill the Cup that clears
Today of past Regrets and future Fears:
Ah, make the most of what we yet may spend
Before we too into the Dust descend;
Dust into Dust, and under Dust to lie
Sans Wine, sans Song, sans Singer, and—sans End!
The Moving Finger writes, and, having writ
Moves on; nor all your Piety nor Wit
Shall lure it back to cancel half a Line
Nor all your Tears wash out a Word of it