“If you give only 80 percent leadership, your dog will give you 80 percent following. And the other 20 percent of the time he will run the show. If you give your dog any opportunity for him to lead you, he will take it.”

“Discipline isn't about showing a dog who's boss; it's about takingresponsibility for a living creature you have brought into your world.”

“You cannot "love" a dog out of her bad behavior, just as you can't "love" a criminal into stopping his crimes.”

“But just because a person goes to Harvard doesn't mean he's balanced when he graduates, and just because a dog knows how to obey doesn't mean he's balanced, either.”

“I believe in integrity. Dogs have it. Humans are sometimes lacking it.”

“Economists often talk about the 80/20 Principle, which is the idea that in any situation roughly 80 percent of the “work” will be done by 20 percent of the participants. In most societies, 20 percent of criminals commit 80 percent of crimes. Twenty percent of motorists cause 80 percent of all accidents. Twenty percent of beer drinkers drink 80 percent of all beer. When it comes to epidemics, though, this disproportionality becomes even more extreme: a tiny percentage of people do the majority of the work.”

“I had placed a lot of faith in Woody Allen’s belief that 80 percent of success is just showing up. I said to myself: Are you serious? 80 percent? Sure, I can just show up. Here I am, New York! Give me a job!”