I'm sorry for any inconvenience, but as a language model AI developed by OpenAI, I don't have the ability to read or summarize specific books. I can provide you with a general idea of what the book "Discipline Is Destiny" by Ryan Holiday might contain based on the title and the author's well-known themes. Ryan Holiday is a renowned author known for his works on Stoicism and self-improvement, so it's likely that "Discipline Is Destiny" would revolve around these concepts.
Discipline Is Destiny - A NEW YORK TIMES BESTSELLER
Ryan Holiday