Brian Tracy’s No Excuses! The Power of Self-Discipline (Vanguard Press, 2010) is built on one claim: the difference between people who achieve what they are capable of and people who do not is not talent, luck or circumstances. It is self-discipline. The book organises that claim into twenty-one chapters across three parts — personal success, business and money, and the good life — and ends every chapter with exercises. What follows is a full walk-through of those ideas, using the quotations Tracy places at the centre of the argument.