One of the texts is called: "On a Heuristic Viewpoint Concerning the Production and Transformation of Light." It is hard to even understand the title. But the contents are even more complicated. And a few years later, it earns Einstein the Nobel Prize. He also develops the famous Theory of Relativity in this year.
Ask your parents what the Theory of Relativity is. But don't be surprised if they start to stutter. There are not many adults who understand it!