Peter Drucker, the father of modern management was one of the most important thinkers of the twentieth century and, also, the most influential in history in the field of business. Therefore, the legacy of Peter Drucker (Vienna, 1909-2005) is virtually unattainable, being plagued with ideas, concepts, and phrases that no one had dared to formulate before. Within this enormous intellectual flow, we can identify 10 great lessons from an interview with the CEO of our time.