I guarantee, highly productive people aren't going through the day forcing themselves to do stuff they don't feel like doing. Gordon Ramsay is not like, "Oh lord, another cooking show that I have to discipline myself to do."

Highly productive people are obsessed. They're in the flow. And there are techniques to work yourself into obsession or a flow state, but it's much more tricky and difficult than the author suggests.

He says, "discipline is like an engine that, once kickstarted, actually supplies energy to the system." Kickstarting an engine is easy. What he's talking about is more like building an engine.