My current understanding of the main charatacter, Pofessor Langdon, is that he's very intelligent and dedicated to his work. As the, DaVinci Code dives deeper into the strange murder of an innocent man, Langdon uses his knowledge to decode hidden messages and symbolism. He's able to so easily figure out the meaning of things that would otherwise completely confuse anyone else. He looks at things differently, and thus knows almost everything about anything. It is clear that he has studied symbolism and conpsiracies for a great deal of time and that he is smarter than most.

    In the beginning of the story, when asked to assess a muder case, Langdon doesn't seem too extatic. He teaches people about symbolism, but he very rarely takes on murders, and events that challenge the political world, and the Catholic Church. These things are so very contreversial, and he knows that not everyone accepts his views. He proceeds to take the case, and he later learns things he had never known before. He learns about things that are hidden from the public. This case makes him even wiser on the things he so loves to study. The reason he is accumulating more knowledge during this case, is that he is being shown things that are very private, and could change overall views of issues in the world today. He is exposed to a world of new knowledge that he wouldv'e never faced if he hadn't taken the case in the first place.