Yet our ability to exercise free will and transcend the most extraordinary obstacles does not make the conditions of our life irrelevant. Most of us struggle and often fail to meet the biggest challenges of our lives. Even the smaller challenges—breaking a bad habit or sticking to a diet—often prove too difficult, even for those of us who are relatively privileged and comfortable in our daily lives. In fact, what is most remarkable about the hundreds of thousands of people who return from prison to their communities each year is not how many fail, but how many somehow manage to survive and stay out of prison against all odds.