I attended a math talk by Assistant Professor Shaowei Lin yesterday. The talk was about the history of algebraic geometry, about how Descartes came up with the coordinate system 500 years ago to symbolically represent geometric objects, about how mathematicians spent the next 500 years embracing the system only to try eliminating it over the last 100 years. And they succeeded. He talked about Bertrand Russell, Alexander Grothendiek and many great achievements of mathematics before, during and after their times. As always, his talk was very interesting and inspiring.