Reply #2: The second quote is closest to the best known translation

[DinahMoeHum]

of this work, the "Fitzgerald" (1859) version:

"...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..."

You might want to check out this interesting link:
http://www.okonlife.com/poems/index.htm

"Rubaiyat" apparently is a plural word for "quatrain" (4-line poems)

Interesting food for thought, IMO.

:think: