And this is one of the best about enjoying what you have NOW in this life, not looking toward what comes after, or worrying about what others or God or society will think. It also advises to party a bit, which is funny for a twelfth-century Persian:
623. Rubaiyat of Omar Khayyam of Naishapur. Second Edition. Edward Fitzgerald. 1909-14. English Poetry II: From Collins to Fitzgerald. The Harvard Classics