When I graduated from philosophy, I was not ready for the exam. And I decided that it would not be worse and started to wash away (hence I honestly don't even remember the topic of the question, it was a long time ago) and was very surprised by the four set by the predecessor. And since the sense of justice in me, unfortunately, prevails over the sense of self-preservation, I began to figure out the motives. Why is it four, because I am a wild nonsense? Prepod replied, "You expressed your thoughts, I tried to teach you this all the time." I say, “Why then four, not five?” The answer was, “You’re so wild, I barely got blood out of my ears!” and :-)