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28 know where this point is. And thus, in its explanatory matter, it ought to be a complete History, as well as a complete Body, of speculative science. At the very least, this much must be affirmed, that the defective condition of philosophy can be remedied, and a better state of matters brought about, only by a work which shall comply rigorously with both the requisitions laid down in § 2.

§ 33. Truth will generally take care of itself, if a man looks vigilantly and conscientiously after the interests of the scientific reason. Although the mere semblance of truth—that is, the plausibilities of ordinary thinking, are altogether repugnant to reason, there is a natural affinity between truth and reason which can never fail to bring them into contact when the inquirer knows exactly what he is aiming at, and is determined to reach it. Real truth, therefore, is attainable, on account of its affinity to right reason; and if a man has reason, he surely can use it rightly. Therefore no plea is available against philosophy on the ground that it is an absolute impracticability, or that it is impossible to bring reason into harmony and coincidence with truth.

§ 34. But the right use of reason? That is the question. Here is where the difficulty lies, as most people will think. Many weary rules, for which