From The Art of Literature and the Science of Literature by Brian Boyd in The American Scholar (an excellent magazine, BTW). A quote:
For the last few decades, indeed, scholars have been reluctant to deal with literature as an art—with the imaginative accomplishment of a work or the imaginative feast of responding to it—as if to do so meant privileging elite capacities and pandering to indulgent inclinations. Many critics have sought to keep literary criticism well away from the literary and instead to arraign literature as largely a product of social oppression, complicit in it or at best offering a resistance already contained.
Literary academics have also been reluctant to deal with science, except to fantasize that they have engulfed and disarmed it by reducing it to “just another narrative,” or to dismiss it with a knowing sneer as presupposing a risibly naïve epistemological realism. They have not only denied the pleasure of art and the power of science, but like others in the humanities and social sciences, they have also denied that human nature exists, insisting against the evidence that culture and convention make us infinitely malleable.
Read the whole thing.