91色情片

Evolving the Mind, by A. G. Cairns-Smith (Cambridge University Press,
拢16.95, ISBN 0 521 40220 4), is an absorbing book. It鈥檚 about the brain.
We know a lot about how it works via molecular biology, but none of that
explains our consciousness, our mind. There are, of course, theories鈥攁nd
Cairns-Smith provides one of his own as well as discussing others, in an
admirably clear style. It is an enjoyable and rewarding read: throw out a couple
of thrillers and take it on holiday.