For myself, I am interested in science and in philosophy only because I want to learn something about the riddle of the world in which we live, and t… - Karl Popper

In previous chapters I have mentioned moral positivism (especially that of Hegel), the theory that there is no moral standard but the one which exists; that what is, is reasonable and good; and therefore, that might is right. The practical aspect of this theory is this. A moral criticism of the existing state of affairs is impossible, since this state itself determines the moral standard of things. Now the historicist moral theory we are considering is nothing but another form of moral positivism. For it holds that coming might is right. The future is here substituted for the present — that is all. And the practical aspect of the theory is this. A moral criticism of the coming state of affairs is impossible, since this state determines the moral standard of things. The difference between ‘the present’ and ‘the future’ is here, of course, only a matter of degree. One can say that the future starts to-morrow, or in 500 years, or in 100. In their theoretical structure there is no difference between moral conservatism, moral modernism, and moral futurism. Nor is there much to choose between them in regard to moral sentiments. If the moral futurist criticizes the cowardice of the moral conservative who takes sides with the powers that be, then the moral conservative can return the charge; he can say that the moral futurist is a coward since he takes sides with the powers that will be, with the rulers of to-morrow. I feel sure that, had he considered these implications, Marx would have repudiated historicist moral theory. Numerous remarks and numerous actions prove that it was not a scientific judgement but a moral impulse, the wish to help the oppressed, the wish to free the shamelessly exploited and miserable workers, which led him to socialism. I do not doubt that it is this moral appeal that is the secret of the influence of his teaching. And the force of this appeal was tremendously strengthened by the fact that he did not preach morality in the abstract. He did not

A rationalist, as I use the word, is a man who attempts to reach decisions by argument and perhaps, in certain cases, by compromise, rather than by violence. He is a man who would rather be unsuccessful in convincing another man by argument than successful in crushing him by force, by intimidation and threats, or even by persuasive propaganda.

Not only do I hate violence, but I firmly believe that the fight against it is not hopeless. I realize that the task is difficult. I realize that, only too often in the course of history, it has happened that what appeared at first to be a great success in the fight against violence was followed by a defeat. I do not overlook the fact that the new age of violence which was opened by the two World wars is by no means at an end. Nazism and Fascism are thoroughly beaten, but I must admit that their defeat does not mean that barbarism and brutality have been defeated. On the contrary, it is no use closing our eyes to the fact that these hateful ideas achieved something like a victory in defeat. I have to admit that Hitler succeeded in degrading the moral standards of our Western world, and that in the world of today there is more violence and brutal force than would have been tolerated even in the decade after the first World war. And we must face the possibility that our civilization may ultimately be destroyed by those new weapons which Hitlerism wished upon us, perhaps even within the first decade after the second World war; for no doubt the spirit of Hitlerism won its greatest victory over us when, after its defeat, we used the weapons which the threat of Nazism had induced us to develop.