However, an idea that gets possession of even one individual so that he will formulate and defend it cannot be said to have failed. It takes its part in the larger discussion, and, however contumeliously rejected, it will leave some impress upon the ideas that are accepted. And the stone that the builders reject may prove to be the cornerstone of to-morrow’s edifice. Educated men are often alarmed by the spread of superficial doctrines which have a timely appeal to passion or interest, and seem likely to sweep the people off their feet and into disaster. It is normal in the history of the United States, or of any country where there is some freedom of speech, that there should be a numerous party of radicals advocating some social or economic heresy like populism, free silver, revolutionary socialism, anarchism, or the like. And indeed we sometimes narrowly escape being swamped by these waves of unreason. But if the doctrine is really superficial it is likely to prove transient. As time goes on people have opportunity to experiment with it, usually on a small scale, and if they are fairly intelligent and their social condition not desperately bad this gives rise to a sounder judgment. In the meantime the particular situation which gave impetus to the doctrine is likely to have changed, as the free-silver agitation, for example, was undermined by the increased production of gold and the advent of higher prices. Another way by which unwise propositions tend to be eliminated is what may be called cancellation. The multitude of frothy schemes that secure a following might well discourage us did we not reflect that they are as antagonistic to one another as they are to good sense, so that the net resultant may be zero. If we have, on the one hand, extreme anarchists who would break down all discipline, we have, on the other, collectivists who would take away all freedom. It is in the very nature of error to lack adaptability to the rest of life, so that it cannot well form large wholes. The saying that no combination of wise men could resist a combination of all the fools does not show much insight at the best, and may be answered by saying that those who combine effectively cannot be fools, since they are meeting one of the most exacting tests of intelligence. We cannot assert, however, that harmful ideas are necessarily eliminated and that only the beneficial survive. All that we can say with confidence in this direction is that social organisms are subject to a struggle, and in order to survive have to exhibit a certain measure of efficiency, or power to meet the struggle. If they have a long life it shows that ideas and practices injurious with reference to the struggle have been kept within limits. If we go beyond this and assert an onward and upward tendency in life we must, I think, rely finally upon faith rather than demonstration to support our belief.