The incorrectness and weaknesses of a theory cause other minds to formulate the problems more exactly and in this way scientific progress is made.
All comparisons between America's current place in the world and anything legitimately called an empire in the past reveal ignorance and confusion about any reasonable meaning of the concept empire, especially the comparison with the Roman Empire.
Presumption should never make us neglect that which appears easy to us, nor despair make us lose courage at the sight of difficulties.