Aubrey Marcus mentioned this book on "The Tim Ferriss Show" podcast.
"Another one of my favorites." - Big Sean
"It’s the simplicity that makes the book so powerful. Anytime I have a friend who wants to embark on the journey of introspection, that’s always where I start." - Daniel Negreanu
"I love [this book] so much that it feels like my book. It feels so personal." - Ellen DeGeneres
"[One] of my favorite books." - Jack Dorsey
"A seriously powerful book." - Joe Rogan
"I just think it’s got a lot of great principles and ideas." - Karlie Kloss
Peter Attia mentioned reading this book on an interview for Outside Online.
"Lays out some very simple and profound truths that will absolutely change your life for the better if you live by them." - Jen Sincero