The real safeguard against this is the dogma of Toleration. I need not here repeat the compact treatise on it which I prepared for the Joint Committee on the Censorship of Stage Plays, and prefixed to The Shewing Up of Blanco Posnet. It must suffice now to say that the present must not attempt to schoolmaster the future by pretending to know good from evil in tendency, or protect citizens against shocks to their opinions and convictions, moral, political or religious: in other words it must not persecute doctrines of any kind, or what is called bad taste, and must insist on all persons facing such shocks as they face frosty weather or any of the other disagreeable, dangerous, or bracing incidents of freedom. The expediency of Toleration has been forced on us by the fact that progressive enlightenment depends on a fair hearing for doctrines which at first appear seditious, blasphemous, and immoral, and which deeply shock people who never think originally, thought being with them merely a habit and an echo. The deeper ground for Toleration is the nature of creation, which, as we now know, proceeds by evolution. Evolution finds its way by experiment; and this finding of the way varies according to the stage of development reached, from the blindest groping along the line of least resistance to intellectual speculation, with its practical sequel of hypothesis and experimental verification; or to observation, induction, and deduction; or even into so rapid and intuitive an integration of all these processes in a single brain that we get the inspired guess of the man of genius and the desperate resolution of the teacher of new truths who is first slain as a blasphemous apostate and then worshipped as a prophet.

   Here the law for the child is the same as for the adult. The high priest must not rend his garments and cry "Crucify him" when he is shocked: the atheist must not clamor for the suppression of Law's Serious Call because it has for two centuries destroyed the natural happiness of innumerable unfortunate children by persuading their parents that it is their religious duty to be miserable. It, and the Sermon on the Mount, and Machiavelli's Prince, and La Rochefoucauld's maxims, and Hymns Ancient and Modern, and De Glanville's apologue, and Dr. Watts's rhymes, and Nietzsche's Gay Science, and Ingersoll's Mistakes of Moses, and the speeches and pamphlets of the people who want us to make war on Germany, and the Noodle's Orations and articles of our politicians and journalists, must all be tolerated not only because any of them may for all we know be on the right track but because it is in the conflict of opinion that we win knowledge and wisdom. However terrible the wounds suffered in that conflict, they are better than the barren peace of death that follows when all the combatants are slaughtered or bound hand and foot.

   The difficulty at present is that though this necessity for Toleration is a law of political science as well established as the law of gravitation, our rulers are never taught political science: on the contrary, they are taught in school that the master tolerates nothing that is disagreeable to him; that ruling is simply being master; and that the master's method is the method of violent punishment. And our citizens, all school taught, are walking in the same darkness. As I write these lines the Home Secretary is explaining that a man who has been imprisoned for blasphemy must not be released because his remarks were painful to the feelings of his pious fellow townsmen. Now it happens that this very Home Secretary has driven many thousands of his fellow citizens almost beside themselves by the crudity of his notions of government, and his simple inability to understand why he should not use and make laws to torment and subdue people who do not happen to agree with him. In a word, he is not a politician, but a grown-up schoolboy who has at last got a cane in his hand. And as all the rest of us are in the same condition (except as to command of the cane) the only objection made to his proceedings takes the shape of clamorous demands that _he_ should be caned instead of being allowed to cane other people.