Chicago University law professor Cass Sunstein discusses Chief Justice Robert's concept of "minimalism" for the court (the court should try to decide cases on the narrowest possible grounds with the largest consenus possible) which Roberts expounded upon during a recent Georgetown University Law Center graduation speech. For a somewhat expanded analysis of the topic, read his op-ed in today's LA Times.
And while we're at it, you should also check out Prof. Sunstein's review of Ronald Dworkin's Justice in Robes from the current issue of The New Republic.