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O.New60

fellow, we are building the cantilever bridge of Induction, held together by scientific struts and ties, yet every plank of its advance is first laid by Retroduction alone;—by the spontaneous conjectures of instinctive reason; and neither Deduction nor Induction contributing a single new concept to the structure; and this is neither less true nor less important for those Inquiries that self interest prompts.

The first answer to the question will be that we cannot help accepting the conjecture in the mode in which we do accept it;

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