There are four types: the cretin, the imbecile, the stupid and the mad. Normality is a balanced mixture of all four.
Umberto EcoI think every professor and writer is in some way an exhibitionist because his or her normal activity is a theatrical one. When you give a lesson the situation is the same as writing a book. You have to capture the attention, the complicity of your audience.
Umberto EcoWhen I went from being an academic to being a member of the community of writers some of my former colleagues did look on me with a certain resentment.
Umberto Eco