Which line from the text best illustrates the "inevitability" of the civil war? they must repeal their personal liberty laws and respect the dred scott decision of the federal supreme court. neither in their own legislatures nor in congress should they trespass upon the right of the south. and this great crisis was only the bursting into flame of many smaller fires that had long been smouldering. mason and dixon's line had been a line of real division separating two inherently distinct portions of the country?