In order to understand Areas of Knowledge, a metaphor is often used. If each Area of Knowledge is a map, then the knowledge each one studies is the territory reflected in the map. There are many different maps to study each territory, that vary in size and in ways of studying the territory, and that study specific territories within the Areas of Knowledge in more detail. However, having all of these different territories may make us wonder whether there are some that have more applications in our lives, and therefore are more useful, and others that do not provide important knowledge.
For example, some may argue that Natural Sciences is the most important Area of Knowledge, since it tries to study and understand the world around us, which is vital for our survival. But others could disagree, seeing as the sciences have been wrong many times and are not completely reliable. The different scientific methods or the equipment used are only two of the many factors that may influence a result and make the conclusions dubitable.
Mathematics could also be considered a useful Area of Knowledge, since it is applied to problems in our daily lives. However, there is only so much knowledge in Mathematics that is truly useful in day to day situations: while adding, subtracting or multiplying have a real-life application, limits (the value that a function approaches) do not. And although they may be useful in certain areas, they are not essential.
To many, Art is an important Area of Knowledge because it helps us express ourselves and convey messages that we could not get across any other way. To others, however, the subjectivity involved in understanding the Arts may be an obstacle, and they may think that Art does not provide any true knowledge since the information each person can extract from it may be different.
All in all, each Area of Knowledge has its pros and cons, and each provides a different kind of knowledge, but this does not mean that some are better than others. Each Area of Knowledge provides unique and important knowledge that should be known to everyone. Then, each person may decide in which Area they wish to specialize in, but it is essential to know the basics of every Area of Knowledge in order to understand our world and the people who live in it.