When, as now, sincerity seems schooled out of professional artists, the straight stuff of it in demotic work becomes a heart's oasis. It has been argued of late, most forcefully by Roberta Smith, in the Times, that museums should abandon their ostracism of outsider and folk art. If our emotional and spiritual uses for art matter beyond our pleasures in formal sophistication, and I think they do, the point is impeccable. The support given it by [the Carnegie] International reflects a catholic and very timely sense of values. Now that just about anything might be done and called art, let it only be done well.