"Now, my grandfather never had any training manuals or self-help books or scientific techniques to rely on, yet he could always elicit that perfectly calm, submissive, and cooperative response from his dogs. I never witnessed my grandfather use any violent punishment, and he didn’t bribe the dogs with treats. What he did was project the kind of consistent, calm-assertive energy that just cries out “leader” in any language, for any species. My grandfather was one of the most confident, even-tempered people I’ve ever met—and definitely the person most in tune with nature. I think he recognized that of all his grandkids, I was the one born with that same special gift. The wisest thing he ever said to me was “Never work against Mother Nature. You only succeed when you work with her.” To this very day, I repeat that to myself—and to my clients—whenever I work with dogs. And sometimes, when I’m feeling stressed, I apply it to other areas of my life. Though my grandfather passed away at the age of 105, I quietly thank him every day for that timeless piece of wisdom."
— Cesar Millan