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

Hadith n. 89
Amir al-mu’minin, peace be upon him, said: If a man sets right matters between himself and Allah, then Allah sets right matters between him and other people; and if a man sets right the affairs of his next life then Allah sets right for him the affairs of this world. Whoever is a preacher for himself is protected by Allah.

Hadith n. 90
Amir al-mu’minin, peace be upon him, said: The perfect jurist of Islam is he who does not let people lose hope from the mercy of Allah, does not make them despondent of Allah’s kindness and does not make them feel safe from Allah’s punishment.

Hadith n. 91
Amir al-mu’minin, peace be upon him, said: The hearts get weary as bodies get weary; so look for beautiful wise sayings for them (to dispel their weariness).

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