Our ancient ancestors expressed their concepts about the world by painting them onto the walls of caves. Millennia later, Einstein chronicled his thoughts about the mysteries of the cosmos on sheets of paper. The most famous equation in science, E=mc2, is forever linked to his name. While profoundly elegant in how it governs the relationship between mass, energy, and light, most people erroneously associate it with the development of the atomic bomb, rather than as a simple explanation for how basic properties of the universe are interlinked.