Science and art were mixed during the Classical Age and during the Renaissance and the Enlightenment. The compartmentalization of every little discipline, each to be hoarded by "professionals", is a relatively new concept. Scientists need to possess abstract thought from which to generate ideas. They aren't mathematical robots, but are people who sometimes have to create, invent, and imagine concepts that others may not grasp. Science and religion are two opposing forces. Science requires generating an idea and constantly testing that idea to prove or disprove it. Religion is based on believing one person without ever questioning what that person says in the name of faith. Often, religious beliefs do not accept proven laws of science.