Noah Feldman

Every generation gets the Constitution that it deserves. As the central preoccupations of an era make their way into the legal system, the Supreme Court eventually weighs in, and nine lawyers in robes become oracles of our national identity.

The world is littered with constitutions that have written guarantees of rights but that don't actually deliver rights. What differentiates the ones where rights are real from where rights are fake is that it's in the initial interests of the majority to actually deliver these rights.