Where are the dwellers of the cities of Rass who killed the...
Where are the dwellers of the cities of Rass who killed the Prophets and stifled the traditions of the Messengers, and who revived the practices of the tyrants? Where are those who went with troops, defeated thousands, mobilized armies and built cities?”[^7] C) Time The lapse of time, which sometimes makes one nation prosperous and another miserable, could be a good source of admonition.
Imam Musa Ibn Ja’far (as), giving advice to his intelligent student Hisham, says: "Take your advice from the world and its inhabitants." This might be one of the reasons why the Holy Qur’an swears by the Time or “ wa’l ‘Asr ”.
And goodly things wherein they rejoiced; thus it was, and We gave them a heritage to another people. So the heaven and the earth did not weep for them, nor were they respited. [Qur’an 44:25-29] [^10] D) Experiences As we know, one of the safe ways of acquiring knowledge is to use other people's experiences.
Concerning this, Imam (as) in his letter says: "Peruse diligently and decidedly those affairs which scholars have painstakingly gathered and have freed you from further attempts." In ethics and advice as well, our experience is the best friend and agent for adopting the right way and avoiding the improper methods.