In Galileo’s “Dialogue” he is trying to prove two things. The first is that he is trying to prove his theory that was brought up in the Assayer. Galileo is attempting to have the reader understand his theory and what makes it correct. However, that is not the only thing Galileo is up to in the “Dialogue.” I agree with Josh Henry in the belief that Galileo was trying to get people to realize that you cannot just accept a fact, but instead question it and discover your own answer and conclusion to the question. This is exemplified by what Sagredo said about Aristotle’s text that nerves originate from the heart. “You have made me see this matter so plainly and palpably that if Aristotle’s text were not contrary to it, stating clearly that the nerves originate to the heart, I should be forced to admit it to be true,” (2). Sagredo is saying that Aristotle gave such valid arguments and proof that no person ever tried to find the truth for themselves, they believed his findings that were incorrect.

That statement made by Sagredo is what Galileo wanted people to realize about his theory. Galileo wanted people to realize that even though his theory on the earth revolving around the sun is not the popular view, it can very much be true. He wanted people to try and discover their own conclusion on his theory to try and add validity to it. Galileo was basically trying to say, you cannot say a theory is wrong just because of known fact, you can only say a theory is wrong if you tested it and proved it incorrect.