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But then with me the horrid doubt always arises whether the convictions of man's mind, which has been developed from the mind of the lower animals, ar...more

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False facts are highly injurious to the progress of science, for they often endure long; but false views, if supported by some evidence, do little har...more

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The very essence of instinct is that it's followed independently of reason.

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To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact.