Knowledge is important. Thanks to education, you were able to write of type that question, thanks to education, you can read this and spell. School basically teaches you about occupations. Math if you are a teacher, or lots of jobs really. Grammar so you can speak properly and correct. Vocabulary for words, especially for you to learn advanced words. Science, if you are a scientist, and Social Studies , well, you should learn about the history of the past and the mystery of the future. It is way more important than you think it is.