The professional in contrast to the amateur. Consider the differences. The amateur plays for fun. The professional plays for keeps. To the amateur, the game is his avocation. To the pro it's his vocation.

First, the pro mindset is a discipline that we use to overcome Resistance. To defeat the self-sabotaging habits of procrastination, self-doubt, susceptibility to distraction, perfectionism, and shallowness, we enlist the self-strengthening habits of order, regularity, discipline, and a constant striving after excellence.

Faithfully follow your GTD system during the day.

we have to build an organization and a system around what we do—one that is about the work and not about us.