It is proper that we acknowledge the overwhelming weight of international opinion against the juvenile death penalty. - Anthony Kennedy

When a juvenile offender commits a heinous crime, the State can exact forfeiture of some of the most basic liberties, but the State cannot extinguish his life and his potential to attain a mature understanding of his own humanity.

Our system presumes that there are certain principles that are more important than the temper of the times. And you must have a judge who is detached, who is independent, who is fair, who is committed only to those principles, and not public pressures of other sort.

Liberty protects the person from unwarranted government intrusions into a dwelling or other private places. In our tradition the State is not omnipresent in the home. And there are other spheres of our lives and existence, outside the home, where the State should not be a dominant presence. Freedom extends beyond spatial bounds. Liberty presumes an autonomy of self that includes freedom of thought, belief, expression, and certain intimate conduct. The instant case involves liberty of the person both in its spatial and more transcendent dimensions