According to Imam Khomeini, the honorable prophet of Islam’s saying were a manifestation of such kind of ethics which he made known as the purpose of his mission.
Imam stresses that man can be needless of many types of knowledge; yet, he cannot consider himself needless of ethics.
The leader of contemporary Muslim world however points out that the knowledge is the capital asset of felicities in both worlds:
The purpose and result of the summons of the messenger of God is the perfection of morality.
In a series of the noble traditions, moral excellences have been given more importance than anything else after doctrinal teachings [ma‘ārif].
And their importance is greater than what we are capable of explaining adequately.
We know for certain is that the asset of the everlasting life of the hereafter and the capital asset of the life of that abode is the acquisition of noble dispositions and the possession of moral excellences.
Imam Khomeini also used to cite a famous tradition by the holy prophet of Islam. This great purpose is what Prophet Muhammad (Peace be upon him ) declared when he said: “I have only been sent to perfect good moral character.”