Certain friendships at the Court are also well-known, such as the friendship between Justice Scalia and Justice Ginsburg. They attend the opera together, their families spend New Year's Eve together -- and they even ride elephants together! (No, that's not a euphemism for something dirty; click here for a great pic of AS and RBG riding an elephant together.)
Based on their divergent judicial philosophies, the closeness of Justice Scalia and Justice Ginsburg might be surprising to some. But it's not as surprising as it might at first seem. Consider the following:
1. AS and RBG have a shared background: they're both former D.C. Circuit judges and law professors, with an academic bent.
2. Even though they have different ideologies, they respect each others' intellects (and are widely regarded as being two of the smartest among the nine justices). Cf. the Kozinski-Reinhardt friendship ("Yes, we disagree with each other violently. But we're BFFs because we're the coolest kids on the playground -- the two smartest judges on the Ninth Circuit!").
3. Justice Scalia's real beef is with people who OUGHT to be conservative, but aren't (e.g., Kennedy, O'Connor, Souter). He's fine with Justice Ginsburg, perhaps on the theory that "she's supposed to be a liberal, and she is a liberal!"