There are two quite different evils about propaganda as now practised. On the one hand, its appeal is generally to irrational causes of belief rather than to serious argument; on the other hand, it gives an unfair advantage to those who can obtain most publicity, whether through wealth or through power. For my part, I am inclined to think that too much fuss is sometimes made about the fact that propaganda appeals to emotion rather than reason. The line between emotion and reason is not so sharp as some people think. Moreover, a clever man could frame a sufficiently rational argument in favour of any position which has any chance of being adopted. There are always good arguments on both sides of any real issue. Definite mis-statements of fact can be legitimately objected to, but they are by no means necessary. The mere words “Pear’s Soap,” which affirm nothing, cause people to buy that article. If, wherever these words appear, they were replaced by the words “The Labour Party,” millions of people would be led to vote for the Labour Party, although the advertisements had claimed no merit for it whatever. But if both sides in a controversy were confined by law to statements which a committee of eminent logicians considered relevant and valid, the main evil of propaganda, as at present conducted, would remain. Suppose, under such a law, two parties with an equally good case, one of whom had a million pounds to spend on propaganda, while the other had only a hundred thousand. It is obvious that the arguments in favour of the richer party would become more widely known than those in favour of the poorer party, and therefore the richer party would win. This situation is, of course, intensified when one party is the Government. In Russia the Government has an almost complete monopoly of propaganda, but that is not necessary. The advantages which it possesses over its opponents will generally be sufficient to give it the victory, unless it has an exceptionally bad case. The objection to propaganda is not only its appeal to unreason, but still more the unfair advantage which it gives to the rich and powerful. Equality of opportunity among opinions is essential if there is to be real freedom of thought; and equality of opportunity among opinions can only be secured by elaborate laws directed to that end, which there is no reason to expect to see enacted. The cure is not to be sought primarily in such laws, but in better education and a more sceptical public opinion. For the moment, however, I am not concerned to discuss cures.