The meaning and implications of the word colonialism and of the closely connected terms of empire and imperialism have undergone a profound transformation in the last decades. Until the end of the nineteenth century the word empire or imperialism was generally used in a laudatory and not a pejorative meaning. The Roman Empire had been the model for Western political thought for one thousand years. The Americans at the end of the eighteenth century proudly and hopefully spoke of their empire. The French revolutionaries proclaimed the imperial expansion of their leadership. Modern Western civilization was regarded as superior to other more stagnant civilizations, and to bring higher civilization to less developed countries was considered a praiseworthy enterprise, in spite of the fact that like so many human efforts this too was inextricably mingled with all kinds of corruption and greed. Empire and colonialism always implied dominion and power; and power, whether exercised by “native” or “alien” governments, has a potency for abuse as probably no other relationship has. Yet liberal alien governments—and liberalism means primarily restraint upon, and limitations of, governmental authority—will be more easily controlled by public opinion against abuse of power than illiberal “native” governments.