"When you write a book, you willingly step into the public arena, no longer reporter but being reported upon, no longer jotting down notes on the debate but joining in it. You should welcome to conflict with journalists, scholars, critics, and others who will read your work and challenge your version of reality with their own. That kind of disputation is healthy for a society and it will keep your talents sharp. Never be afraid to defend the vision of the world that you have committed to the page. But make sure you can defend it, because every charlatan in our midst undermines the credibility of us all."
Source: Letters to a Young Journalist.