The main idea is to be interesting

H.L. Mencken in Newspaper Morals.

Aspiring, toward the end of my nonage, to the black robes of a dramatic critic, I took counsel with an ancient whose service went back to the days of Our American Cousin, asking him what qualities were chiefly demanded by the craft.

'The main idea,' he told me frankly, 'is to be interesting, to write a good story. All else is dross. Of course, I am not against accuracy, fairness, information, learning. If you want to read Lessing and Freytag, Hazlitt and Brunetiere, go read them: they will do you no harm. It is also useful to know something about Shakespeare. But unless you can make people read your criticisms, you may as well shut up your shop. And the only way to make them read you is to give them something exciting.'