The book was a dialogue between three people: one who supports the Aristotelian way of thinking, one who supports the Copernican theory, and one who is impartial. Galileo was allowed to continue his research and publish with the permission of Pope Urban VIII, a friend of Galileo, on condition that his work was impartial.  Galileo claimed his publication was neutral but it was obviously in favor of Copernican theory.  In his writing, the supporter of Aristotle was portrayed as dim witted, often getting confused and tangled in his own arguments.  This file is licensed under the Creative Commons Attribution Share Alike 3.0 Uported License.