Apple doesn't need to maximize book sales. It simply needs to keep publishers happy enough to maintain an impressive-sounding inventory of titles while waiting for entirely new forms of publishing to develop.

Living with a single kidney is almost exactly like living with two; the remaining kidney expands to take up the slack. (When kidneys fail, they generally fail together; barring trauma or cancer, there's not much advantage to a backup.) The main risk to the donor is the risk of any surgery.

Dialysis does not make patients well. It simply postpones their deaths.

Virginia Postrel Quotes