War and Peace

It was a long time before Pierre could fall asleep that night. He paced up and down his room, now turning his thoughts on a difficult problem and frowning, now suddenly shrugging his shoulders and wincing, and now smiling happily.

He was thinking of Prince Andrew, of Natásha, and of their love, at one moment jealous of her past, then reproaching himself for that feeling. It was already six in the morning and he still paced up and down the room.