How do we find calm in times of stress and uncertainty? Drawing on the wisdom of Epictetus, Marcus Aurelius, Seneca, and others, Sherman presents a compelling, modern Stoicism that teaches grit, resilience, and the importance of close relationships in addressing life's biggest and smallest challenges. Bringing ancient ideas to bear on 21st century concerns - from workers facing stress and burnout to first responders in a pandemic, from soldiers on the battlefield to citizens fighting for racial justice - Sherman shows how Stoicism can help us fulfil the promise of our shared humanity.