I have just returned from a visit over yonder, where three of our most loyal comrades are paying the penalty for their devotion to the cause of the working class. They have come to realize, as many of us have, that it is extremely dangerous to exercise the constitutional right of free speech in a country fighting to make democracy safe in the world.
I realize that, in speaking to you this afternoon, there are certain limitations placed upon the right of free speech. I must be exceedingly careful, prudent, as to what I say, and even more careful and prudent as to how I say it. I may not be able to say all I think; but I am not going to say anything that I do not think.
-from “The Canton Speech”