It often happens that the universal belief of one age of mankind — a belief from which no one was, nor without an extraordinary effort of genius and courage, could at that time be free — becomes to a subsequent age so palpable an absurdity, that the only difficulty then is to imagine how such a thing can ever have appeared credible.
John Stuart MillThis is what writers mean when they say that the notion of cause involves the idea of necessity. If there be any meaning which confessedly belongs to the term necessity, it is unconditionalness. That which is necessary, that which must be, means that which will be, whatever supposition we may make in regard to all other things.
John Stuart MillThe spirit of improvement is not always a spirit of liberty, for it may aim at forcing improvements on an unwilling people.
John Stuart MillAlmost all rich veins of original and striking speculation have been opened by systematic half-thinkers.
John Stuart MillThe triumph of the Confederacy... would be a victory for the powers of evil which would give courage to the enemies of progress and damp the sprits of its friends all over the civilized world... [The American Civil War] is destined to be a turning point, for good or evil, of the course of human affairs.
John Stuart Mill