Al-Imam Ali (p.b.u.h), said:
Hadith n. 453
453. Amir al-mu’minin, peace be upon him, said: Az-Zubayr remained a man from our house till his wretched son ‘Abdullah came forth. 94
Hadith n. 454
454. Amir al-mu’minin, peace be upon him, said: What has a man to do with vanity. His origin is semen and his end is a carcass while he cannot feed himself nor ward off death.95
Hadith n. 455
455. Amir al-mu’minin, peace be upon him, was asked about the greatest poet and he said: The whole group of them did not proceed on the same lines in such a way that we can know the height of their glory; but if it has to be done then it is the “al-Malik ad-dillil” (the mislead king).
As-Sayyid ar-Razi says: Amir al-mu’minin means Imru’l Qays.96
Hadith n. 456
456. Amir al-mu’minin, peace be upon him, said: Is there no free man who can leave this chewed morsel (of the world) to those who like it? Certainly, the only price for yourselves is Paradise. Therefore, do not sell yourself except for Paradise.
Source: https://www.al-islam.org/nahjul-balagha-part-2-letters-and-sayings
