to this level, although most of them think they have. The opinions which are still persecuted strike the majority as so monstrous and immoral that the general principle of toleration cannot be held to apply to them. But this is exactly the same view as that which made possible the tortures of the Inquisition. There was a time when Protestantism seemed as wicked as Bolshevism seems now. Please do not infer from this remark that I am either a Protestant or a Bolshevik.
Legal penalties are, however, in the modern world, the least of the obstacles to freedom of thought. The two great obstacles are economic penalties and distortion of evidence. It is clear that thought is not free if the profession of certain opinions makes it impossible to earn a living. It is clear also that thought is not free if all the arguments on one side of a controversy are perpetually presented as attractively as possible, while the arguments on the other side can only be discovered by diligent search. Both these obstacles exist in every large country known to me, except China, which is the last refuge of freedom. It is
