What opinions come to mind when you think of Souter?

For me, the following:

- His majority opinion in Exxon v. Baker. 

- His stare decisis portion of the Casey joint opinion (which I find to ring rather hollow, since the precedent of Roe was actually altered noticeably).

- The simple resonance of his "six years behind bars" concurrence in Boumediene.

- And, probably most definitively, his Harlan-channeling concurrence in Washington v. Glucksberg. 

While he ended up primarily serving the role as a member of the liberal bloc on the most controversial of issues, Souter did have his own peculiar style - a quieter approach that often got drowned out beneath the fiercer Scalian blasts, the more pivotal O'Connor and Kennedy balancing acts, and the more certain Stevens rejoinders.