A good judicial temperament? Respect for the Constitution? A thorough knowledge of the law and a stellar resume?
How about empathy to recognize what it's like to be a young teen-aged mom?
If knowing what it's like to be a teenage mom is such an important qualification for being on the highest court in the land then why not just appoint a teenage mom while we're at it?
Obama's memory of the debate around Chief Justice Roberts qualifications for the Supreme Court also differs from mine. I never recall Roberts' love for his wife or his behavior towards his dog as being an important part of the debate over his ability to be a good justice. I actually don't recall that all - though it's possible it was mentioned. What I remember is Roberts being grilled for days about numerous legal issues and being highly impressive. I also recall Roberts being confirmed by a vote of 78-22.