If theft is advantageous to everyone who succeeds at it, and adultery is a good strategy, at least for males, for increasing presence in the gene pool, why do we feel they are wrong? Shouldn't the only morality that evolution produces be the kind Bill Clinton had - being sorry you got caught?

A science fiction writer should try to combine the intimately human with the grandly cosmic.

No one disputes that seeming order can come out of the application of simple rules. But who wrote the rules?

Paul Levinson has outdone himself: The Plot to Save Socrates is a philosophically rich gem full of big ideas and wonderful time-travel tricks.

How do you define God? Like this. A God I could understand, at least potentially, was infinitely more interesting and relevant than one that defied comprehension.

It is either coincidence piled on top of coincidence," said Hollus, "or it is deliberate design.

General principles should not be based on exceptional cases.