The beauty and the tragedy of the modern world is that it eliminates many situations that require people to demonstrate a commitment to the collective good. Protected by police and fire departments and relieved of most of the challenges of survival, an urban man might go through his entire life without having to come to the aid of someone in danger — or even give up his dinner. Likewise, a woman in a society that has codified its moral behavior into a set of laws and penalties might never have to make a choice that puts her very life at risk. What would you risk dying for — and for whom — is perhaps the most profound question a person can ask themselves. The vast majority of people in modern society are able to pass their whole lives without ever having to answer that question, which is both an enormous blessing and a significant loss.