The “Four Agreements” is one of my favorite books. Its principals are foundational toward living a good life and pragmatic life. Author Don Miguel Ruiz started his career as a medical doctor. According to the bio on his website, “A near-fatal car crash forever changed the direction of his life, however, causing him to leave medicine and to examine the essential truth about life and humanity.” In 1997 he published “The Four Agreements,” which became a New York Times bestseller for nearly ten years.