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

The consequence of fear is disappointment and of bashfulness is frustration. Opportunity passes away like the cloud. Therefore, make use of good opportunities.

We have a right. If it is allowed to us well and good, otherwise, we will ride on the hind part of the camel (like lowly people) even though the night journey may be long.

He whose deeds accord (him) a back position cannot be given a front position because of his lineage.

 Rendering relief to the grief-stricken and providing comfort in hardship are among the means of atonement for great sins.

O son of Adam, when you see that your Lord, the Glorified, bestows His favours on you while you are disobeying Him, you should fear Him

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