I read this book out of a basic curiosity about how Stoic philosophy could apply to modern life. What I learned interested me even more. First, I thought I knew what a Stoic was - and I didn't. Second, I found that Stoic philosophy is a philosophy of life, a practical system that one can use compatibly with most major religious belief systems, or atheism for that matter. I found that Stoicism had parallels with Zen Buddhism, another practice I have studied and admired.