Hillel the Elder
Besides his linguistic work, Zamenhof published a religious philosophy he called "Homaranismo" (the term in Esperanto, usually rendered as "humanitism" in English, sometimes rendered loosely as humanitarianism or humanism), based on the principles and teachings of Hillel the Elder. He said of Homaranismo: "It is indeed the object of my whole life. I would give up everything for it."