Nor does one have the option of saying that differences exist but that one will not judge them. To notice a difference is to have an opinion about it - unless one refuses to think. And that is my ultimate objection to the nonjudgmental frame of mind. We can refuse to voice our opinion, our judgments, but we cannot keep from having them unless we refuse to think about what is before our eyes. To refuse to think is to reject that which makes a human life human. In saying that excellence in the arts is defined in terms of high aesthetic quality, I do not mean to trivialize the complications of determining high aesthetic quality. I do insist that to deny the existence of such a thing as high aesthetic quality is to take the lazy way out.
-Charles Murray, Human Accomplishment: The Pursuit of Excellence in the Arts and Sciences, 800 B.C. to 1950