"Business is essentially applied rationality: a systematic process of thinking that produces a real-world result. Instead of mortgaging your life to go to business school, it's possible to dramatically increase your knowledge of business on your own time and with little cost - without setting foot inside a classroom."
Source : "Indie author Scott McClanahan considers art and anecdote through 5 of his favorite books". Interview with Phil McCausland, www.avclub.com. July 20, 2016.