Parade's End - pg. 6

During Tietjen's late trouble -- for four months before Tietjens' wife had left him to go abroad with another man -- Macmaster had filled a place that no other man could have filled. For the basis of Christopher Tietjens' emotional existence was a complete taciturnity -- at any rate to his emotions. As Tietjens' saw the world, you didn't "talk". Perhaps you didn't even think about how you felt.