Bertrand Russell:

Moncure Conway, in whose honour we are assembled today, devoted his life to two great objects: freedom of thought and freedom of the individual. In regard to both these objects, something has been gained since his time, but something also has been lost. New dangers, somewhat different in form from those of past ages, threaten both kinds of freedom, and unless a vigorous and vigilant public opinion can be aroused in defence of them, there will be much less of both a hundred years hence than there is now. My purpose in this address is to emphasize the new dangers and to consider how they can be met.

Let us begin by trying to be clear as to what we mean by “free thought.” This expression has two senses. In its narrower sense it means thought which does not accept the dogmas of traditional religion. In this sense a man is a “free thinker” if he is not a Christian or a Mussulman or a Buddhist or a Shintoist or a member of any of the other bodies of men who accept some inherited orthodoxy. In Christian countries a man is called a “free thinker” if he does not decidedly believe in God, though this would not suffice to make a man a “free thinker” in a Buddhist country.

I do not wish to minimize the importance of free thought in this sense. I am myself a dissenter from all known religions, and I hope that every kind of religious belief will die out. I do not believe that, on the balance, religious belief has been a force for good. Although I am prepared to admit that in certain times and places it has had some good effects, I regard it as belonging to the infancy of human reason, and to a stage of development which we are now outgrowing.

But there is also a wider sense of “free thought,” which I regard as of still greater importance. Indeed, the. harm done by traditional religions seems chiefly traceable to the fact that they have prevented free thought in this wider sense. The wider sense is not so easy to define as the narrower, and it will be well to spend some little time in trying to arrive at its essence.