"His name was Galileo Galilei," Langdon said.

Kohler looked up. "Galileo?"

"Yes. Galileo was an Illuminatus. And he was also a devout Catholic. He tried to soften the church’s position on science by proclaiming that science did not undermine the existence of God, but rather reinforced it. He wrote once that when he looked through his telescope at the spinning planets, he could hear God’s voice in the music of the spheres. He held that science and religion were not enemies, but rather allies—two different languages telling the same story, a story of symmetry and balance… heaven and hell, night and day, hot and cold, God and Satan. Both science and religion rejoiced in God’s symmetry… the endless contest of light and dark." Langdon paused, stamping his feet to stay warm.

Kohler simply sat in his wheelchair and stared.

"Unfortunately," Langdon added, "the unification of science and religion was not what the church wanted."

"Of course not," Kohler interrupted. "The union would have nullified the church’s claim as the sole vessel through which man could understand God. So the church tried Galileo as a heretic, found him guilty, and put him under permanent house arrest. I am quite aware of scientific history, Mr. Langdon. But this was all centuries ago. What does it have to do with Leonardo Vetra?"

The million dollar question. Langdon cut to the chase. "Galileo’s arrest threw the Illuminati into upheaval. Mistakes were made, and the church discovered the identities of four members, whom they captured and interrogated. But the four scientists revealed nothing… even under torture."