Once courage - in its meaning of physical daring - was only the work of the human, then machines took possession of it: no longer the warrior armed with his own hands, but with machine guns, tanks, flamethrowers, fighter-bombers. Somewhat like what happens now with technology: until thirty years ago it was necessary to pronounce oneself, write, telephone, therefore expose oneself. Today you can communicate, indeed you are induced to communicate, without a human interface, therefore without risk, without fear of compromise. And human virtues are delegated to what is not human. Thus, even courage and the fortitude inherent in it are increasingly becoming a virtual abstraction, emptied of meaning, for men and women wandering without a compass, young people blinded by the present and old men incarcerated in memory. To cope with "today's greatest social urgency," Paolo Crepet proposes to parents, educators and, in particular, to those "digital natives" who are about to explore their existence in a hyper-technological society a "hypothetical inventory" of some declinations of courage in various spheres of human experience (the courage to educate, to say no, to begin again, to be afraid, to write, to imagine, to create ). An inventory conceived as an association of ideas, a brain-storming, a useful exercise to stimulate adults and not-yet-adults alike to rediscover the strength of brashness and resilience that life demands of us every day. But in these pages Crepet talks mostly about another and more ambitious form of courage. The one we must invent to create a new world, if we do not want others to invent it for us; the one that young people must rediscover if they are not to find themselves sad and resigned to no longer believing in their dreams; the one that everyone must unearth in themselves to begin an ideal and ethical renaissance. Because, in the end, courage is the magical opportunity that allows us to understand the present and build the future.