<b>Ryan Holiday is a genius. ... </b> All of his books are amazing - you have got to get into Ryan Holiday, it's as simple as that. If you don't, you're doing yourself a disfavour. -- Chris Evans

Ryan Holiday is among the most psychologically wise writers I know. -- Angela Duckworth, bestselling author of Grit

Ryan Holiday is one of his generation's finest thinkers -- Steven Pressfield, author of The War of Art

[Ryan Holiday is a] self-help sage, who is now a sought-after guru to NFL coaches, Olympians, hip-hop stars, and Silicon Valley entrepreneurs . . . [he] translates Stoicism, which had counted emperors and states­men among its adherents during antiquity, into pithy catchphrases and digestible anecdotes for ambitious, twenty-first-century life hackers. ― New York Times

I don't have many rules in life, but one I never break is: If Ryan Holiday writes a book, I read it as soon as I can get my hands on it. -- Brian Koppelman, screenwriter and director, Ocean’s Thirteen and Billions