Every society rests in the last resort on the recognition of common principles and common ideals, and if it makes no moral or spiritual appeal to the loyalty of its members, it must inevitably fall to pieces.
To believe that patriotism will not flourish if patriotic ceremonies are voluntary... is to make an unflattering estimate of the appeal of our institutions to free minds.
If you want to be fully convinced of the abominations of slavery, go on a southern plantation, and call yourself a negro trader. Then there will be no concealment; and you will see and hear things that will seem to you impossible among human beings with immortal souls.