Avoiding pride and remembering mortality
Nahj al-Balāgha|Volume 1|Book 3|Chapter 398
۳۹۸. وَقَالَ (عليه السلام): ضَعْ فَخْرَكَ، وَاحْطُطْ كِبْرَكَ، وَاذْكُرْ قَبْرَكَ.
398. Amīr al-mu’minīn, peace be upon him, said: Put off boasting, give up self-conceit and remember your grave.