Tolstoy opens Anna Karenina by observing: All happy families are alike; each unhappy family is unhappy in its own way. Business is the opposite. All happy companies are different: each one earns a monopoly by solving a unique problem. All failed companies are the same: they failed to escape competition. Peter Thiel, Zero to One: Notes on Startups, or How to Build the Future

Zero to One by Peter Thiel