Dantes associations do not appear to be correct according to this link the Moon resembles Grammar Mercury may be compared to Dialectics Venus may be compared to Rhetoric the Sun may be compared to Arithmetic Mars may be compared to music Jupiter may be compared to Geometry Saturn may be compared to Astrology I did not mean to say that they were right or wrong in any objective sense but that the associations attributed to Dante in the article differ from those found here Convivio by Dante Alighieri