TWO:It has been already shown how Extension, having become identified with matter, took on its mechanical qualities, and was conceived as a connected series of causes or modes of motion. The parallel found by Spinoza for this series in Thought is the chain of reasons and consequents forming a410 demonstrative argument; and here he is obviously following Aristotle, who although ostensibly distinguishing between formal and efficient causes, hopelessly confounds them in the second book of his Posterior Analytics.565 We are said to understand a thing when we bring it under a general rule, and also when we discover the mechanical agency which produces it. For instance, we may know that a particular man will die, either from the fact that all men are mortal, or from the fact that he has received a fatal wound. The general rule, however, is not the cause of what will happen, but only the cause of our knowing that it will happen; and knowledge of the rule by no means carries with it a knowledge of the efficient cause; as we see in the case of gravitation and other natural forces whose modus operandi is still a complete mystery. What deceived Aristotle was partly his false analysis of the syllogism, which he interpreted as the connexion of two terms by the interposition of a middle answering to the causal nexus of two phenomena; and partly his conception of the universe as a series of concentric spheres, through which movement is transmitted from without, thus combining the two ideas of notional comprehension and mechanical causation.The real fact was, that exertions equally strenuous were all this time being made on the part of the Pretender. As the state of Anne's health became more and more precarious, both parties increased their efforts to secure their ground, and there was a most active and incessant struggle going on round the throne to enable the head of either party to step into it the moment it became vacant. It was considered essential for the claimant to be on the spot, and, therefore, every means was used to induce the queen to admit the Pretender as well as a member of the Electoral House to Court. It was a scheme of the Duke of Berwick, which he communicated to Oxford through the Abb�� Gualtier, that the queen should be induced to consent to do her brother justice; that he should go to St. James's, and that on the understanding that he consented to allow liberty of the subject and of religion, the queen should pass such Acts as were necessary for the public security on these heads, and that then she should suddenly introduce him in full Parliament.