It is interesting that Galileo wrote this important statement of his beliefs to a woman. The Duchess must have been an important intellectual and political figure.
Galileo was apparently defending himself to the Duchess. What was he accused of? Of ignoring what the Bible had to say about the relationship of the earth to the rest of the heavenly bodies. What was his defense?
Here is part of what he had to say:
Good advice! And, I believe, what should have been an adequate defense. Thanks for reading.