In PLATO AT THE GOOGLEPLEX, Rebecca Newberger Goldstein set out to showcase, in sometimes startling ways, the continuing relevance of a classic philosopher. But what's remarkable is that she actually brings off this tour de force with both madcap brilliance and commanding authority.

I have now and again tried to imagine the perfect environment, the ideal conditions for reading: A worn leather armchair on a rainy night? A hammock in a freshly mown backyard? A verandah overlooking the summer sea? Good choices, every one. But I have no doubt that they are all merely displacements, sentimental attempts to replicate the warmth and snugness of my mother's lap.

Order and surprise: these are two intertwined elements that make for any great library or collection.

Once we know the plot and its surprises, we can appreciate a book's artistry without the usual confusion and sap flow of emotion, content to follow the action with tenderness and interest, all passion spent. Rather than surrender to the story or the characters - as a good first reader ought - we can now look at how the book works, and instead of swooning over it like a besotted lover begin to appreciate its intricacy and craftmanship. Surprisingly, such dissection doesn't murder the experience. Just the opposite: Only then does a work of art fully live.

Science fiction is, after all, the art of extrapolation.

In PLATO AT THE GOOGLEPLEX, Rebecca Newberger Goldstein set out to showcase, in sometimes startling ways, the continuing relevance of a classic philosopher. But what's remarkable is that she actually brings off this tour de force with both madcap brilliance and commanding authority.

Throughout history the exemplary teacher has never been just an instructor in a subject; he is nearly always its living advertisement.