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deludes so many minds and has sone and at this moment is doing science such devastating injury, that I am going to break my resolution before I have entered upon the practice of it, by refuting this fallacy and explaining how it has been harmful.

The fallacy is an attempt to prove that there is no distinction between good and bad reasoning.
True, it is admitted, you may write down something which represents a supposed reasoning which nobody would admit, or you may hear another person reason in a way that you would not yourself reason, but reasoning is performed by some mind; and that mind approves of it.
Otherwise, it would not be that mind's reasoning.
To that mind the reasoning seems good; and behind that you cannot go.
For if a man be good or not, he is obliged to conduct the inquiry by reasoning; and if he admits that reasoning, it is simply