"Now what is the Reviewer's quarrel with me on this occasion? That he does not understand the meaning of my terms? No. He acknowledges the contrary. That I have not fully explained the sense in which I have used them? No. An explanation, he knows, is immediately subjoined, though he has carefully suppressed it. That I have varied the sense in which I have applied them? No. I challenge him to show it. But he nevertheless goes on for many pages together in arguing against what he knows, and, in fact, acknowledges, I did not mean; and then turns round and argues again, though much more feebly, indeed, against what he says I did mean! Now, even had I been in error as to the use of a word, I appeal to the reader whether such an unworthy and disingenuous course would not, if generally pursued, make controversy on all subjects, however important, that into which, in such hands, it always degenerates--a dispute about words." The best way to avoid controversies about words is to use words in their proper senses. Mr Sadler may think our objection captious; but how he can think it disingenuous we do not well understand. If we had represented him as meaning what we knew that he did not mean, we should have acted in a disgraceful manner. But we did not represent him, and he allows that we did not represent him, as meaning what he did not mean. We blamed him, and with perfect justice and propriety, for saying what he did not mean. Every man has in one sense a right to define his own terms; that is to say, if he chooses to call one two, and two seven, it would be absurd to charge him with false arithmetic for saying that seven is the double of one. But it would be perfectly fair to blame him for changing the established sense of words. The words, "inverse variation," in matters not purely scientific, have often been used in the loose way in which Mr Sadler has used them. But we shall be surprised if he can find a single instance of their having been so used in a matter of pure arithmetic. We will illustrate our meaning thus. Lord Thurlow, in one of his speeches about Indian affairs, said that one Hastings was worth twenty Macartneys. He might, with equal propriety, have said ten Macartneys, or a hundred Macartneys. Nor would there have been the least inconsistency in his using all the three expressions in one speech. But would this be an excuse for a financier who, in a matter of account, should reason as if ten, twenty, and a hundred were the same number?