Daniel Levitin takes the most sophisticated ideas that exist about the brain and mind, applies them to the most emotionally direct art we have, our songs, and makes beautiful music of the two together.

The sin of capitalism, perhaps, is to make wants feel like needs, to give to simple silly stuff the urgency of near-physical necessity: I must have it. The grace of capitalism is to make wants feel like hopes, so that material objects and stuff can feel like the possibility of something heroic and civic.

I don't miss the obligation to be opinionated, but I do regret the chance to share a joy.

When handsome men or beautiful women take up the work of the intellect, it impresses us because we know they could have chosen other paths to being impressive; that they chose the path of the mind suggests that there is on it something more worthwhile than a circuitous route to the good things that the good-looking get just by showing up.

Yet in truth the big question Camus asked was never the Anglo-American liberal one: How can we make the world a little bit better tomorrow? It was the grander French one: Why not kill yourself tonight? That the answers come to much the same thing in the end-easy does it; tomorrow may be a bit better than today; and, after all, you have to have a little faith in people-doesn't diminish the glamour that clings to the man who turned the question over and look at it, elegantly, upside down.

We've had mass shootings in the United States in the part of violent antiabortion protesters, in the part of violent pro-ISIS militants. The trick and the trap and the horror is not faith, Scott. I don't think the trap and the horror is fanaticism.

I rush to add that I find the Web infinitely useful for rustling up information, settling arguments or locating the legends of rock stars.