Theodor Mommsen

An independent state does not pay too dear a price for its independence in accepting the sufferings of war when it cannot avoid them; a state which has lost its independence may find at least some compensation in the fact that its protector procures for it peace with its neighbours.

When we acquired California and New- Mexico this party, scorning all compromises and all concessions, demanded that slavery should be forever excluded from them, and all other acquisitions of the Republic, either by purchase or conquest, forever.