Humans have had plenty of time to think about it, but still rarely agree on what it means to live a good life. What actually motivates us toward particular actions, and is that the same as what should motivate us? If we don’t already have guiding principles, where can we find them? This lively panel discussion from the 2025 Aspen Ideas Festival features two philosophers and a writer who approach these questions from diverse angles. University of Chicago philosophy professor Agnes Callard joins Harvard Law School lecturer Adam Sandel and writer David Brooks, the co-founder of Weave: The Social Fabric Project at the Aspen Institute for an exploration of how intellect meets desire and individualism meets community. Samuel Kimbriel, the founding director of the Aspen Institute’s Philosophy and Society Initiative, moderates the conversation.