Moderation in worldly pursuits
Nahj al-Balāgha|Volume 1|Book 3|Chapter 393
۳۹۳. وَقَالَ (عليه السلام): خُذْ مِنَ الدُّنيْا مَا أَتَاكَ، وَتَوَلَّ عَمَّا تَوَلَّى عَنْكَ، فَإِنْ أَنْتَ لَمْ تَفْعَلْ فَأَجْمِلْ فِي الطَّلَبِ.
393. Amīr al-mu’minīn, peace be upon him, said: Take off the favours of the world whatever comes to you and keep away from what keeps away from you. If you cannot do so be moderate in your seeking.