Anthony Kennedy,
Hilton v. South Carolina Public Railways Commission…
“ The resulting symmetry, making a State's liability or immunity, as the case may be, the same in both federal and state courts, has much to commend it. It also avoids the federalism-related concerns that arise when the National Government uses the state courts as the exclusive forum to permit recovery under a congressional statute. This is not an inconsequential argument. Symmetry in the law is more than aesthetics. It is predictability and order. But symmetry is not an imperative that must override just expectations which themselves rest upon the predictability and order of stare decisis. ”
