Umberto Eco on Learning in Public and Acting in the Face of Incertitude (from the preface to Travels In Hyperreality)

"Perhaps I have written these things, and go on writing similar things, for other reasons. I am anxious, insecure, and always afraid of being wrong. What is worse, I am always afraid that the person who says I am wrong is better than I am. I need to check quickly the ideas that come into my head. It takes years to write an "academic" book, and then you have to wait for the reviews, and then correct your own thinking in the later editions. It is work that demands time, peace of mind, patience. I am capable of doing it, I believe, but in the meanwhile I have to allay my anxiety. Insecure persons often cannot delay for years, and it is hard for them to develop their ideas in silence, waiting for the "truth" to be suddenly revealed to them. That is why I like to teach, to expound still-imperfect ideas and hear the students' reactions. That is why I like to write for the newspapers, to reread myself the next day, and to read the reactions of others. A difficult game, because it does not always consist of being reassured when you meet with agreement and having doubts when you are faced with dissent. Sometimes you have to follow the opposite course: distrust agreement and find in dissent the confirmation of your own intuitions. There is no rule; there is only the risk of contradiction. But sometimes you have to speak because you feel the moral obligation to say something, not because you have the "scientific" certainty
that you are saying it in an unassailable way".