Atheists or Mormons, extreme communists, or men who advocate free love. Such men are thought to be wicked, and it is considered only natural to refuse to employ them. People have hardly yet waked up to the fact that this refusal, in a highly industrial State, amounts to a very rigorous form of persecution.

If this danger were adequately realized, it would be possible to rouse public opinion, and to secure that a man’s beliefs should not be considered in appointing him to a post. The protection of minorities is vitally important; and even the most orthodox of us may find himself in a minority some day, so that we all have an interest in restraining the tyranny of majorities. Nothing except public opinion can solve this problem. Socialism would make it somewhat more acute, since it would eliminate the opportunities that now arise through exceptional employers. Every increase in the size of industrial undertakings makes it worse, since it diminishes the number of independent employers. The battle must be fought exactly as the battle of religious toleration was fought. And as in that case, so in this, a decay in the intensity of belief is likely to prove the decisive factor. While men were convinced of the absolute truth of Catholicism or Protestantism, as the case might be, they were willing to persecute on account of them. While men are quite certain of their modern creeds, they will persecute on their behalf. Some element of doubt is essential to the practice, though not to the theory, of toleration. And this brings me to my other point, which concerns the aims of education.

If there is to be toleration in the world, one of the things taught in schools must be the habit of weighing evidence, and the practice of not giving full assent to propositions which there is no reason to believe true. For example, the art of reading the newspapers should be taught. The schoolmaster should select some incident which happened a good many years ago, and roused political passions in its day. He should then read to the school children what was said by the newspapers on one side, what was said by those on the other, and some impartial account of what really happened. He should show how, from the biased account of either side, a practised reader could infer what really happened, and he should make them understand that everything in newspapers is more or less untrue. The cynical scepticism which would result from this teaching would make the children in later life immune from those appeals to idealism by which decent people are induced to further the schemes of scoundrels.

History should be taught in the same way. Napoleon’s campaigns of 1813 and 1814, for instance, might be studied in the Moniteur, leading up to the surprise which Parisians felt when they saw the Allies arriving under the walls of Paris after they had (according to the official bulletins) been beaten by Napoleon in every battle. In the more advanced classes, students should be encouraged to count the number of times that Lenin has been assassinated by Trotsky, in order to learn contempt for death. Finally, they should be given a school history approved by the Government, and asked to infer what a French school history would say about our wars with France. All this would be a far better training in citizenship than the trite moral maxims by which some people believe that civic duty can be inculcated.

It must, I think, be admitted that the evils of the world are due to moral defects quite as much as to lack of intelligence. But the human race has not hitherto discovered any method of eradicating moral defects; preaching and exhortation only add hypocrisy to the previous list of vices. Intelligence, on the contrary, is easily improved by methods known to every competent educator. Therefore, until some method of teaching virtue has been discovered, progress will have to be sought by improvement of intelligence rather than of morals. One of the chief obstacles to intelligence is credulity, and credulity could be enormously diminished by instruction as to the prevalent forms of mendacity. Credulity is a greater evil in the present day than it ever was before, because, owing to the growth of education, it is much easier than it used to be to spread misinformation, and, owing to democracy, the spread of misinformation is more important than in former times to the holders of power. Hence the increase in the circulation of newspapers.

If I am asked how the world is to be induced to adopt these two maxims—namely (1) that jobs should be given to people on account of their fitness to perform them; (2) that one aim of education should be to cure people of the habit of believing propositions for which there is no evidence—I can only say that it must be done by generating an enlightened public opinion. And an enlightened public opinion can only be generated by the efforts of those who desire that it should exist. I do not believe that the economic changes advocated by Socialists will, of themselves, do anything towards curing the evils we have been considering. I think that, whatever happens in politics, the trend of economic development will make the preservation of mental freedom increasingly difficult, unless public opinion insists that the employer shall control nothing in the life of the employee except his work. Freedom in education could easily be secured, if it were desired, by limiting the function of the State to inspection and payment, and confining inspection rigidly to the definite instruction. But that, as things stand, would leave education in the hands of the Churches, because, unfortunately, they are more anxious to teach their beliefs than Freethinkers are to teach their doubts. It would, however, give a free field, and would make it possible for a liberal education to be given if it were really desired. More than that ought not to be asked of the law.

My plea throughout this address has been for the spread of the scientific temper, which is an altogether different thing from the knowledge of scientific results. The scientific temper is capable of regenerating mankind and providing an issue for all our troubles. The results of science, in the form of mechanism, poison gas, and the yellow press, bid fair to lead to the total downfall of our civilization. It is a curious antithesis, which a Martian might contemplate with amused detachment. But for us it is a matter of life and death. Upon its issue depends the question whether our grandchildren are to live in a happier world, or are to exterminate each other by scientific methods, leaving perhaps to negroes and Papuans the future destinies of mankind.