" From the day of their marriage she had realized that he did not love her in the same way as she loved him. But she thought it possible that he was actually incapable of such a love. That power of loving was her own unhappy heritage. To care with a desperation, an intensity that was, she knew, unusual among women! She would have died for him willingly; she was ready to lie for him, scheme for him, suffer for him! Instead she accepted with pride and reserve the place he wanted her to fill. He wanted her cooperation, her sympathy, her active and intellectual help. He wanted of her, not her heart, but her brains, and those material advantages which birth had given her. "
― Agatha Christie , Sparkling Cyanide (Colonel Race, #4)