"He wanted to go home. He wanted it so much that he trembled at the thought. But if the price of that was selling good men to the night, if the price was filling those graves, if the price was not fighting with every trick he knew…then it was too high. It wasn’t a decision he was making, he knew that. It happened far below the levels of the brain where decisions were made. It was something built in. There was no universe, anywhere, where a Sam Vimes would give in on this, because if he did then he wouldn’t be Sam Vimes anymore. (p. 330)"