Why does Carlos allow Bourne to live?

Throughout the story, Bourne refers to himself as insane and others call him a mad man. Is Bourne insane and/or a mad man?

In the Bible, Cain kills his brother. What is the significance (other than it is a substitute for Charlie which is Spanish for Carlos as stated in the story) of the name being used for the fictional assassin?

What do the government and those running Treadstone Seventy-One owe Jason Bourne?

Throughout the novel Bourne is obviously trying to find himself. How are other characters also trying to find themselves? Are they successful?

Does Marie St. Jacques truly love Bourne or is she just infatuated with the man that saved her life? If she does love him, why does she fall in love with him so quickly?

Religion is referenced many times in the...