Explanation:

Shankara, Ramanuja and Madhva are equally respectable preachers, who have preached the same truth by stressing a part of the truth or some times twisting the truth to suit the context for uplifting the human beings existing in their times. A preacher can twist the concept or stress a part of the concept for the sake of uplifting the spiritual aspirants existing in that time. Such freedom is sanctioned by God to the preacher since the uplift of the human beings is the main goal to be achieved. The projection of the complete concept without any twist may some times become useless and may even harm the people. The practical problems are more important for a preacher to uplift the disciple and mere projection of theoretical truth without any practical use is done by a scholar. Thus, a preacher is totally different from a scholar. The preacher modifies the spiritual knowledge in such a way so that the disciple climbs the higher step. A scholar is never bothered about the uplift of the disciple and is bothered only in projecting the plain concept as the ultimate truth. The preacher is also a scholar but a scholar need not be the preacher.