"The old cathedrals often have sublime artworks hidden away in the darkest corners for only God to see. The same goes for murder."
From this quote, we can see Jack's warped perceptions of his crime, in which he sees them as works of art. During the film, Jack discusses his crime as if he were discussing artistic creations, creating a strange and disturbing dynamic. Here, he compares his crimes to "old cathedrals that have artwork hidden away," suggesting he believes that there is something artistically valuable "hidden" within his crimes.
"Religion has ruined human beings because God teaches people to deny the tiger in themselves. Turns us all into a throng of slaves, too shameful to acknowledge it."
In this scene from the film, Jack is speaking about religion and its damaging consequences. He argues that organized religion has "ruined human beings," because it forces people to repress their true desires. However, Verge responds to this by saying that Jack "Should have read the right letters," suggesting that he thinks Jack has got the wrong idea about religion.
"Some people claim that the atrocities we commit in our fiction are those inner desires which we cannot commit in our controlled civilization, so they're expressed instead through our art. I don't agree. I believe Heaven and Hell are one and the same. The soul belongs to Heaven and the body to Hell."
This quote invites a discussion about the nature of art, and what art represents. Jack is here referring to the idea that art is an expression of dark "inner desires," that cannot be exercised in society and therefore are expressed within artistic creations.