Last week, I wrote about the common ground we share in our collective defense. This week, I want to build on that theme by exploring the importance of the common good—the idea that shared resources and shared efforts are essential for a thriving society. When we neglect what we hold in common, we risk exploitation, waste, or depletion of these critical elements. Lessons from History Throughout history, we see the same pattern repeated: when societies forget why institutions were created, they...