“I have learnt through bitter experience the one supreme lesson to conserve my anger, and as heat conserved is transmuted into energy, even so our anger controlled can be transmuted into a power which can move the world.”

“Just as there are laws of Conservation of Matter and Energy, so there are in fact Laws of Conservation of Pain and Joy. Neither can ever be created or destroyed. But one can be converted into the other.”

“The law of conservation of energy, reborn as the law of conservation of mass/energy, has established itself as one of the few unshakable theoretical guideposts in the wilderness of the world of our sense experiences. In scope and generality it surpasses Newton's laws of motion, Maxwell's equations for electricity and magnetism, and even Einstein's potent little E=mc². It comes as close to an absolute truth as our uncertain age will permit.”

“Owning a gun in America is one way for conservative white males to demonstrate their anger at crime, liberalism, feminism, and modernity.”

“Shared pain is lessened; shared joy, increased—thus do we refute entropy." Stated another way: "Just as there are Laws of Conservation of Matter and Energy, so there are in fact Laws of Conservation of Pain and Joy. Neither can ever be created or destroyed. But one can be converted into the other.”

“One of the greatest gifts we receive from dogs is the tenderness they evoke in us. The disappointments of life, the injustices, the battering events that are beyond our control, and the betrayals we endure, from those we befriended and loved, can make us cynical and turn our hearts into flint – on which only the matches of anger and bitterness can be struck into flame. By their delight in being with us, the reliable sunniness of their disposition, the joy they bring to playtime, the curiosity with which they embrace each new experience, dogs can melt cynicism,and sweeten the bitter heart.”