““If I’ve learned anything from podcasting, it’s don’t be afraid to do something you’re not qualified to do.” TF: This is a common thread throughout this book. Kamal Ravikant, Naval Ravikant’s (page 546) brother, told me how Naval once said to him (paraphrased): “If I had always done what I was ‘qualified’ to do, I’d be pushing a broom somewhere.” As I’ve also heard said, “Amateurs built the Ark, professionals built the Titanic.” Dan preemptively disarms potential criticism of his credentials by saying in nearly every episode, “Keep in mind that I’m no historian, but . . .””

— Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-Class Performers by Timothy Ferriss