If found this in *The Catholic Church and Science *by Benjamin Wiker:
"The notion that Galileo was actually tortured has now shown to be false, although he WAS threatened with torture…that having been said, we still might shudder at the thought that Galileo was arrested at all, that he was even remotely threatened with torture, and that he remained under arrest if even in his own house. How could this have happened and why? To understand, we must take a look at the much larger historical context, beginning with philosophy…
…In 1623 Galileo had published a book,
The Assayer, in which he advocated quite openly the materialist position of the ancient pagan philsopher Democritus against the Aristotelianism of his day…
…We must emphasize the obvious: Christians were, from the very first, antagonistic to the materialist doctrines of Democritan atomism precisely because they were so intimately associated with the atheism and hedonism of the Epicureans. Thus during Christianity’s first four centuries we observe a storm of holy invective showered upon the names of Epicurus and his disciple Lucretius by such Christian luminaries as St. Athanasius, St. Gregory of Nyssa, St. Basil, St. Ambrose, and most influential of all, St. Augustine. This animus became the foundation for the Catholic suspicion of any attempt to base a physics on material atoms, and it was firmly in place in the early Renaissance when the ancient works of or about Epicurus and Lucretius were recovered and began to circulate around Europe. The predictable effect of this widespread circulation was a new interest in atomism - especially as defined against the natural philosophy of Aristotle - and even more important, a revival of atheism and hedonism. All of this happened in the time period leading right up to Galileo…
…Now, none of this is offered so that we might conclude that Galileo should have been jailed, tortured, or killed! The point, rather, is this: it is completely understandable that the assertion of Democritean atomism by Galileo woudl set off serious alarm bells among philosophers and theologians of the 17th century. They were, by intellectual training, rightly habituated to associate such atomism with the atheism and hedonism of Epicurus and Lucretius…
…Now here I offer an interesting conjecture, one that I think is well founded. If Galileo had
only avowed Copernicanism (and done so with a little more humility and tact), he might have avoided any trouble at all. But the combination of the two - atomism and Copernicanism - tended to make his Copernicanism smell of Epicureanism. Why? What possible connection could there be between the two?
Again, Epicurus’s goal was to destroy any notion that we had an immortal soul that could be bothered in the afterlife by the gods. Materialism allowed him to be entirely this-worldly and live his brief life on Earth in peace and without worry. The notion that the random association of atoms brings about* everything *we know, including ourselves, was a double assurance that there is no creator who has any claims upon us…"