Selling a hardcover edition of the book, Can’t Hurt Me by David Goggins. I purchased the book brand new, read it once, and now I am ready to pass it along to the next reader. *New York Times Best Seller* Over 5 million copies sold In Can't Hurt Me, Goggins shares his astonishing life story and reveals that most of us tap into only 40% of our capabilities. Goggins calls this The 40% Rule, and his story illuminates a path that anyone can follow to push past pain, demolish fear, and reach their full potential.