How were the foreign policy goals and achievements of Metternich and Bismarck similar and different?

Metternich and Bismarck wanted different things with Europe. Metternich was an advocate of Balance of Power and fought for this at the Congress of Vienna. Bismarck, on the other hand, wanted to create a super powerful Germany through the unification of German states. Bismarck believed in Realpolitik, a machiavellian theory that states that the power of a nation should be placed above any ideological or moral standard.