"When a subject becomes totally obsolete we make it a required course"

This quote by Peter Drucker speaks with the idea that when something is no longer pertinent or helpful, it can still be studied and taught. Drucker is recommending that when a subject becomes obsolete, it can still be studied and taught as a needed course. This idea is based upon the concept that knowledge is valuable, even if it is no longer relevant in today. By studying outdated topics, we can acquire a better understanding of the past and how it has shaped the present. In addition, by studying obsolete topics, we can get a much better understanding of the development of understanding and how it has changed with time. Drucker's quote motivates us to take a look at the past and to appreciate the understanding that has been lost gradually. It likewise encourages us to acknowledge the value of studying and teaching obsolete subjects, as they can supply important insight into the past and how it has actually formed the present.