Discipline Is Destiny

Ryan Holiday has written about Stoic philosophy before, but I wonder what personal experiences or insights led him to emphasize discipline in this way. Did he draw from specific moments or stories?

The book offers some straightforward strategies for building self-control. I'm curious whether readers found these methods effective in real life or if they needed to adapt them.

Holiday references many figures from history to support his points. I wonder what criteria he used to select these stories and how he balanced them with modern examples.