Did you ever notice that all machines are made for some reason?" he asked Isabelle. "They are built to make you laugh, like the mouse here, or to tell the time, like clocks, or to fill you with wonder like the automaton. Maybe that's why a broken machine always makes me a little sad, because it isn't able to do what it was made to do." Isabelle picked up the mouse, wound it again, and set it down. "Maybe it's the same with people," Hugo continued. "If you lose your purpose...it's like you're broken.