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

Hadith n. 401

401. Amir al-mu’minin, peace be upon him, said: Nearness with people in their manners brings about safety from their evil.

Hadith n. 402

402. Someone uttered an expression above his position, then Amir al-mu’minin, peace be upon him, said to him: You have started flying soon after growing feathers (shakir) and commenced grumbling before attaining youth (saqb).

Sayyid ar-Razi says: Here, “shakir” [in the original Arabic text] means the first feathers that grow on a bird before it is strong enough to fly. And “saqb” means the young camel who does not grumble unless it becomes mature.

Hadith n. 403

403. Amir al-mu’minin, peace be upon him, said: Whoever hankers after contraries gets no means of success.

Hadith n. 404

404. On being asked the meaning of the expression: “la hawla wala quwwata illa bi’llah ” (there is no strength nor power but by means of Allah) . Amir al-mu’minin, peace be upon him, said : We are not master of anything along with Allah, and we are not master of anything save what He makes us master of. So, when He makes us master of anything of which He is a superior Master over us, He also assigns some duties to us; and when He takes it away He will take away those duties as well. 90

Hadith n. 405

405. Amir al-mu’minin, peace be upon him, heard Ammar ibn Yasir (may Allah have mercy on him) conversing with al- Mughirah ibn Shu’bah and said: Let him alone O Ammar, for he has entered religion only to the extent of his deriving advantage of the world, and he has wilfully involved himself in misgivings in order to adopt them as cover for his shortcomings.

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