Al-Imam Ali (p.b.u.h), said:

Hadith n. 102
Amir al-mu’minin, peace be upon him, said: Shortly a time will come for people when high positions will be given only to those who defame others, when vicious people will be regarded as witty and the just will be regarded as weak. People will regard charity as a loss, consideration for kinship as an obligation, and worship grounds for claiming greatness among others. At this time, authority will be exercised through the counsel of women, the posting of young boys in high positions and the running of the administration by eunuchs.

Hadith n. 103
Amir al-mu’minin, peace be upon him, was seen in worn-out clothes with patches and when it was pointed out to him he said: With it the heart fears, the mind feels humble and the believers emulate it. Certainly, this world and the next are two enemies against each other and two paths in different directions. Whoever likes this world and loves it hates the next and is its enemy. These two are like East and West. If the walker between them gets near to one, he gets farther from the other. After all, they are like two fellow-wives.

Source: https://www.al-islam.org/nahjul-balagha-part-2-letters-and-sayings