" All of these factors are subsumed to a greater or lesser extent by observing that the Supreme Court is an institution far more dominated by centrifugal forces, pushing toward individuality and independence, than it is by centripetal forces pulling for hierarchical ordering and institutional unity. The well-known checks and balances provided by the framers of the Constitution have supplied the necessary centrifugal force to make the Court independent of Congress and the president. The "

― William H. Rehnquist , The Supreme Court