Greene opens by arguing that despite surface differences across fields and centuries, the path to true mastery follows a remarkably consistent structure — one he traces through historical figures like Charles Darwin, Wolfgang Amadeus Mozart, and Leonardo da Vinci, alongside contemporary masters he interviewed directly.

Core argument he establishes:

• Mastery isn't primarily about innate genius, but about a specific, demanding process of deep engagement sustained over years, which Greene argues is available to far more people than commonly believed
• The book's structure follows this universal path through distinct phases — apprenticeship, active engagement, and eventual mastery — each explored in subsequent chapters
• Greene draws on both historical case studies and modern neuroscience on skill acquisition and expertise to ground his argument in more than just anecdote

This opening sets up mastery as a learnable process with identifiable stages, rather than a mysterious gift possessed by a fortunate few.