Katie Queen of Tennessee - The Apache Relay
"Though they were very dissimilar in character, they also shared many tastes and appetites, and those they didn’t share they tolerated in each other with instinctive respect, as a necessary spice of difference. They knew each other very well indeed. Her natural tendency was to deplore human failings in others and ignore them in herself; his natural tendency was to understand and forgive human failings in others, and be merciless upon them in himself. She felt herself invincibly strong; he knew himself perilously weak."
The Thorn Birds - Colleen McCullough