Wan Mohd Nor Wan Daud, Knowledge, Language, Thought and The Civilization of Islam: Essays in Honor of Syed Muhammad Naquib al–Attas

"And adab towards language means the recognition and acknowledgement of the rightful and proper place of every word in a written or uttered sentence so as not to produce a dissonance in meaning, sound and concept. Literature is called adabiyat in Islam precisely because it is seen as the keeper of civilization, the collector of teachings and statements that educate the self and society with adab such that both are elevated to the rank of the cultured man (insan adabi) and society."