"There is a respectable and influential body of opinion which… fulminates alike against devaluations and levies, on the ground that they infringe the untouchable sacredness of contract…. Yet such persons, by overlooking one of the greatest of all social principles, namely the fundamental distinction between the right of the individual to repudiate contract and the right of the State to control vested interest, are the worst enemies of what they seek to preserve. For nothing can preserve the integrity of contract between individuals except a discretionary authority in the State to revise what has become intolerable. The powers of uninterrupted usury are great. If the accreations of vested interest were to grow without mitigation for many generations, half the population would be no better than slaves to the other half…. The absolutists of contract… are the real parents of revolution…"