In the book "The Ego Is the Enemy," author Ryan Holiday highlights the idea that true virtue starts with a deep understanding of oneself and the world around us. This concept suggests that before we can act with integrity or purpose, we must first gain insight into our values and beliefs. Understanding ourselves is the foundation that guides our moral compass and decision-making.

Furthermore, Holiday emphasizes that understanding alone is not enough; it must be accompanied by courage to act upon that understanding. Just as the orator Demosthenes pointed out, the fulfillment of virtue comes from having the bravery to apply our insights in real life. It is this combination of knowledge and courage that allows us to embody virtue and make a positive impact on both ourselves and society.