Original sentence: Although Galileo is generally considered one of the first modern scientists, as evidenced by his position in the sunspot controversy, he often arrogantly considered himself to be the sole-propietor of the discoveries in astronomy.Furthermore, he never accepted Kepler's elliptical orbits for the planets, holding to the circular orbits of Copernicus, which still employed epicycles to account for irregularities in planetary motions
Edited sentence: Although Galileo is often considered one of the first pure scientists, as evidenced by his position in the sunspot controversy, he often arrogantly considered himself to be the sole-propietor of the discoveries in astronomy.Furthermore, he often rejected Kepler's more sensible eccentric orbits for the circular orbits and epicycles of Copernicus which were inherently flawed much like the models of the ancient Greeks