Criticism and Fiction by William Dean Howells

I would have my fellow-critics consider what they are really in the world for. The critic must perceive, if he will question himself more carefully, that his office is mainly to ascertain facts and traits of literature, not to invent or denounce them; to discover principles, not to establish them; to report, not to create.

It is so much easier to say that you like this or dislike that, than to tell why one thing is, or where another thing comes from, that many flourishing critics will have to go out of business altogether if the scientific method comes in, for then the critic will have to know something besides his own mind. He will have to know something of the laws of that mind, and of its generic history.