The Housekeeper + The Professor - Yoko Ogawa (1)

I remembered something the Professor had said: "The mathematical order is beautiful precisely because it has no effect on the real world. Life isn't going to be easier, nor is anyone going to make a fortune, just because they know something about prime number. Of course, lots of mathematical discoveries have practical applications, no matter how esoteric they may seem. Research on ellipses made it possible to determine the orbits of the planets, and Einstein used non-Euclidean geometry to describe the form of the universe. Every prime number were used during the war to create codes-to cite a regrettable example. But those things aren't the goal of mathematics. The only goal is to discover the truth."