The character Paul Martel (played by Oliver Martinez) reads a poem to
the character Connie Sumner (played by Diane Lane) that includes the
line, "This moment is your life."

1. Who wrote this poem, and what is its title?
2. In that book is this poem published?

Hi criso_312,

I recognize the stanza from the movie. This particular Rubaiyat of
Omar Khayyam comes from the book "Persian Love - sixty-nine stanzas by
Omar Khayyam" --adapted, altered and otherwise rearranged for musical
accompaniment by Len Bracken.
 
http://www.lenbracken.com/Persian%20Love%20by%20Omar%20Khayyam.htm

The address to order the book is visable on the cover here:
http://internetlovefest.com/gate/persian_love.html

THE 13th STANZA:

..."Drink wine.. it's what remains of the harvest of youth - the
season of roses and wine and drunken friends. Be happy for a moment,
that moment's your life..."

~~Cynthia

Search strategy:
"Persian Love" "Omar Khayyam"

This answer was worth five stars, in my opinion. It was fast,
accurate, and complete.

Brava, Cynthia!