Aristotle was the father of science as we know it today. Unlike Plato, he was more interested in the material world. He believed that the non-material, or universal world is less real, and derived by the mind from the particular, or material world. He studied the material world, classifying animals, explaining meteorological phenomena, and the like. there were many errors in his studies, but the errors weren’t important. What was important was that Aristotle studied the world around him, and not a theoretical universe that no one can see.