Authors:

You know how little while we have to stay, And, once departed, may return no more.

Omar Khayyam, Edward FitzGerald, Christopher Decker (1997). “Edward FitzGerald, Rubáiyát of Omar Khayyám: A Critical Edition”, p.121, University of Virginia Press
You know how little while we have to stay, And, once departed, may return no more.