Today's decision is the pinnacle of our Eighth Amendment death-is-different jurisprudence. Not only does it, like all of that jurisprudence, find no support in the text or history of the Eighth Amendment; it does not even have support in current social attitudes regarding the conditions that render an otherwise just death penalty inappropriate. Seldom has an opinion of this Court rested so obviously upon nothing but the personal views of its members.

Atkins v. Virginia (2002) (dissenting)