"There is nothing more common," says the lively Voltaire, "than to read and to converse to no purpose. In history, in morals, in law, in physic, and in divinity, be careful of equivocal terms." One of the ancients wrote a book to prove that there was no word which did not convey an ambiguous and uncertain meaning. If we possessed this lost book, our ingenious dictionaries of "synonyms" would not probably prove its uselessness. Whenever _the same word_ is associated by the parties with _different ideas_, they may converse, or controverse, till "the crack of doom!" This with a little obstinacy and some agility in shifting his ground, makes the fortune of an opponent. While one party is worried in disentangling a meaning, and the other is winding and unwinding about him with another, a word of the kind we have mentioned, carelessly or perversely slipped into an argument, may prolong it for a century or two--as it has happened! Vaugelas, who passed his whole life in the study of words, would not allow that the _sense_ was to determine the meaning of _words_; for, says he, it is the business of _words_ to explain the _sense_. Kant for a long while discovered in this way a facility of arguing without end, as at this moment do our political economists. "I beseech you," exclaims a poetical critic, in the agony of a confusion of words, on the Pope controversy, "not to ask whether I mean _this_ or _that_!" Our critic, positive that he has made himself understood, has shown how a few vague terms may admit of volumes of vindication. Throw out a word, capable of fifty senses, and you raise fifty parties! Should some friend of peace enable the fifty to repose on one sense, that innocent word, no longer ringing the _tocsin_ of a party, would lie in forgetfulness in the Dictionary. Still more provoking when an identity of meaning is only disguised by different modes of expression, and when the term has been closely sifted, to their mutual astonishment both parties discover the same thing lying under the bran and chaff after this heated operation. Plato and Aristotle probably agreed much better than the opposite parties they raised up imagined; their difference was in the manner of expression, rather than in the points discussed. The Nominalists and the Realists, who once filled the world with their brawls, and who from irregular words came to regular blows, could never comprehend their alternate nonsense; "whether in employing general terms we use _words_ or _names_ only, or whether there is _in nature anything_ corresponding to what we mean by a _general idea_?" The Nominalists only denied what no one in his senses would affirm; and the Realists only contended for what no one in his senses would deny; a hair's breadth might have joined what the spirit of party had sundered!