You can't prove Rembrandt is better than Norman Rockwell - although if you actually do prefer Rockwell, I'd say you were shunning complexity, were secretly conservative, and hadn't really looked at either painter's work. Taste is a blood sport.

A metaphysical tour de force of untethered meaning and involuting interlocking contrapuntal rhythms, 'The Clock' is more than a movie or even a work of art. It is so strange and other-ish that it becomes a stream-of-consciousness algorithm unto itself - something almost inhuman.

Chris Ofili's suave, stippled, visually tricked-out paintings of the nineties, with their allover fields of shimmering dots and clumps of dung, are like cave paintings of modern life. They crackle with optical cockiness, love, and massive amounts of painterly mojo.

Although I adore the Italian High Renaissance, I'd rather look at Mannerism. The former is ordered, integrated, otherworldly, and grandiose; it leaves you feeling hungry for something flawed and of-the-flesh.

Almost all institutions own a lot more art than they can ever show, much of it revealing for its timeliness, genius, or sheer weirdness.

More and more in the art world are becoming moralistic, telling artists and critics what they should and shouldn't write, do, or make art about. Never mind the intellectual hypocrisy of this: Those who violate the clublike code are made out to be wrong, immoral, corrupt.

Decades ago, Gerhard Richter found a painterly philosopher's stone. Like Jackson Pollock before him, he discovered something that had been in painting all along, always overlooked or discounted.