What did Malcolm X do while he was in prison?

he changed his way in jail by a note that his brother let him that said don't drink and stop smoking. if you think the anwer is wrong look in www.wikipedia.com an click where it says English then look on the left hand side where there is a space and on the bottom of the space says search on the space write Malcolm X then press search and then look for it its a very looooooong page. I am not really sure if the anwer is right!!!!!!!!!