They never say but my guess is because of his sever OCD and stealing tendencies. Plus, as he said in the end, he just prefers staying in there.
He has two books titled “Arguments On Boundary” and “Winged Serpent.” People diagnosed with OCD often have boundary issues and if you looked at a winged serpent laid flat on its back, doesn’t it remind you of a butterfly shape? Your sphenoid bone (is butterfly-shaped) is 1 of 8 cranium bones that protects your brain— this could be representative of how he protects and values his intelligence obtained from books and adding to his compulsive tendencies to have them ordered a certain way.
I appreciate this response
But like. Why is Glasses dud in there. He’s like great man.