Two things are contrary to reason: to enjoy more than is decreed and to die before the time appointed.
Fate will not change by a thousand laments and sighs,
By thanks or complaints, issuing from the mouth.
The angel appointed over the treasures of wind
Cares not if the lamp of a widow dies.
Saadi Shirazi
http://www.poemhunter.com/poem/ch-08-on-rules-for-conduct-in-life-maxim-46/