Latin = language of science, his works widely read. The printing of books made ideas & information disseminate. People put together collections that one person could not do himself in his lifetime. Neptunists vs. plutonists an early controversy on the origin of rocks related to the questions of earths origin. Viewed from a quarter millennium later, this controversy is often portrayed as a battle between two eminent scientists and their schools of thought. These 2 were the most prominent ones, either wrote widely read books. Easier for us to link this idea to 2 people though there was more to it. But: scientific controversy should not be primarily a battle between people, but between ideas. However: battle between 2 titanic personalities is easier to report & remember. Rocks originated by sedimenting or precipitation out of a primeval ocean. One ocean was the origin: rocks formed early in history. By cooling of molten magma or by other action of heat.