In early times, the great ...

In early times, the great majority of the male sex were slaves, as well as the whole of the female. And many ages elapsed, some of them ages of high cultivation, before any thinker was bold enough to question the rightfulness, and the absolute social necessity, either of the one slavery or of the other.
In early times, the great majority of the male sex were slaves, as well as the whole of the female. And many ages elapsed, some of them ages of high cultivation, before any thinker was bold enough to question the rightfulness, and the absolute social necessity, either of the one slavery or of the other.
 John Stuart Mill

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Accordingly, France Had Voltaire, and his school of negative thinkers, and England (or rather Scotland) had the profoundest negative thinker on record, David Hume: a man, the peculiarities of whose mind qualified him to detect failure of proof, and want of logical consistency, at a depth which French skeptics, with their comparatively feeble powers of analysis and abstractions stop far short of, and which German subtlety alone could thoroughly appreciate, or hope to rival.
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 John Stuart Mill
What citizens of a free country would listen to any offers of good and skillful administration in return for the abdication of freedom?
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Men and governments must act to the best of their ability. There is no such thing as absolute certainty but there is assurance sufficient for the purposes of human life.
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 John Stuart Mill
When one's ideas are not challenged, one's ability to defend them weakens.
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 John Stuart Mill
One person with a belief is equal to ninety-nine who have only interests.
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 John Stuart Mill