Abstinence of the world and vicissitudes of time
Nahj al-Balāgha|Volume 1|Book 1|Chapter 99
أَلاَ فَاذْكُرُوا هَادِمَ اللَّذَّاتِ، وَمُنَغِّصَ الشَّهَوَاتِ، وَقَاطِعَ الاْمْنِيَاتِ، عِنْدَ الْمُسَاوَرَةِ لِلاْعْمَالِ الْقَبِيحَةِ، وَاسْتَعِينُوا اللهَ عَلَى أَدَاءِ وَاجِبِ حَقِّهِ، وَمَا لاَ يُحْصَى مِنْ أَعْدَادِ نِعَمِهِ وَإِحْسَانِهِ.
Beware ! At the time of committing evil deeds remember the destroyer of joys, the spoiler of pleasures, and the killer of desires (namely death). Seek assistance of Allāh for fulfilment of His obligatory rights, and for (thanking Him) for His countless bounties and obligations.