This from Samuel Johnson ought to be the epigraph to every book I write:

No expectation is more fallacious than that which authors form of the reception which their labours will find among mankind. Scarcely any man publishes a book, whatever it be, without believing that he has caught the moment when the publick attention is vacant to his call, and the world is disposed in a particular manner to learn the art which he undertakes to teach.

Alan Jacobs @ayjay