While I was working there, I sometimes had to go down to the basement and peel potatoes alone, in a dark, cold, and wet room. At first, I didn’t like this dungeon-like place, especially when it was icy cold and snowing outside. But I found that because my task was easy, and there was no one around to bother me, I could spend lots of time thinking about physics, while peeling those potatoes. At the time, I was reading a book about Einstein’s Relativity Theory.