54 Chapter 3
Copernican system all fixed stars, also intrinsically luminous bodies like the sun, are
eternally at rest. ”^39 Galileo persuaded his readers by using familiar topics that connected
astronomy and music within the quadrivium they all knew. Thus, in 1674 Robert Hooke
noted that those seeking “ better reasoned grounds, from the proportion and harmony of
the World, cannot but imbrace the Copernican Arguments, as demonstrations that the Earth
moves, and that the Sun and Stars stand still. ”^40 The language of harmony invoked a new
aesthetic that would not only alleviate the dissonance of heliocentrism but invite enjoyment
of its expressive power.