I believe that the question is asking about Martin Luther, the German reformer of the sixteenth century. The American civil rights leader is named after him - Martin Luther King Jr.
Martin Luther did not know what would happen when he put his 95 theses on the castle door of Wittenberg. As a monk he was bothered by the selling of indulgences by people like Tezel. There was a jiggle during his time that particularly bothered him - "A coin in the coffer rings, a soul from purgatory springs." He also saw the evils of nepotism and simony.
So, what did Luther want to achieve?
First, he wanted reform. There is no evidence that he wanted to start a new movement. This is important to underline. He did not plan to start the Protestant Reformation.
Second, he wanted clerical abuses to stop. He saw too much of it, and he believed that it was hurting the church. Moreover, the clergy were going against the very thing that God commanded.
Finally, Luther wanted to follow his own conscience. Luther asserted that his conscience was captive to the Word of God and that he could not go against conscience. This is a huge step in religious thinking.