I forgot to mention this interesting article last night in connection with the Da Vinci Code. Instead of Leonardo, why not pause to give Athanasius Kircher a moment’s notice. Kircher was Jesuit priest and genuine Renaissance man who taught mathematics at the Collegio Romano in the 17th century. He also ran the museum at the Vatican. A case could be made that we owe Kircher a far greater debt than Da Vinci. While Leonardo encrypted all his thoughts in private notebooks, Kircher was a prolific publisher. He was the prototype of the modern university professor, though with a polymath’s myriad fascinations. Archaeology, alchemy, biology, mathematics, history, languages, and cryptography, Kircher was truly ecumenical in his tastes and interests.