If you are truly convinced that there is some solution to all human problems, that one can conceive an ideal society which men can reach if only they do what is necessary to attain it, then you and your followers must believe that no price can be too high to pay in order to open the gates of such a paradise. Only the stupid and malevolent will resist once certain simple truths are put to them. Those who resist must be persuaded; if they cannot be persuaded, laws must be passed to restrain them; if that does not work, then coercion, if need be violence, will inevitably have to be used—if necessary, terror, slaughter.
The great presidents never forget the principle of the republic and seek to preserve and enhance them – in the long run– without undermining the needs of the moment. Bad presidents simply do what is expedient, heedless of principles. But the worst presidents are those who adhere to the principles regardless of what the fortunes of the moment demand.