Liberty is not a means to a higher political end. It is itself the highest political end.

Acton distinguishes liberty from instrumental political goals such as national greatness, administrative efficiency, or even popular sovereignty. For him, freedom is not merely a tool to achieve prosperity or order; it is the supreme standard by which political arrangements should be judged. The remark reflects Acton’s liberal, anti-absolutist outlook and his suspicion of any ideology—whether monarchic, democratic, nationalist, or revolutionary—that asks individuals to surrender rights for a promised collective good. It also implies a moral dimension: political power is legitimate only insofar as it protects conscience and limits coercion. Liberty, on this view, is the end that gives politics its ethical purpose.