John Paul Stevens,
Norfolk and Western Railway Company v…
“ Moreover, given the respect that our legal system has always paid to the enforceability of private contracts-a respect that is evidenced by express language in the Constitution itself [6] -there should be a powerful presumption against finding an implied authority to impair contracts in a statute that was enacted to alleviate a legitimate concern about the antitrust laws. Had Congress intended to convey the message the Court finds in § 11341, it surely would have said expressly that the exemption was from all restraints imposed by law or by private contract. ”
