Her blue eyes were still beautiful, but they did not know what was before them, and Mary herself could never look through them again to tell Laura what she was thinking without saying a word. ↗
They drove a long way through the snowy woods, till they came to the town of Pepin. Mary and Laura had seen it once before, but it looked different now. ↗
There's also a sense of freedom. I was so obsessed by this problem that I was thinking about if all the time - when I woke up in the morning, when I went to sleep at night, and that went on for eight years. ↗
Well, some mathematics problems look simple, and you try them for a year or so, and then you try them for a hundred years, and it turns out that they're extremely hard to solve. ↗