The Socialist Party of Great Britain is unique in keeping open platform for the expression of the point of view of opponents.
We oppose all forms of suppression, not in response to some abstract principle, but because we recognise that socialist society demands for its operation, as for its achievement, a responsible, intelligent population, used to drawing its own conclusions from the observation of facts and the weighing up of the arguments of opposing schools of thought. We only know our position to be correct because it survives continuous criticism. We do not deny that suppression may be immediately useful to the British or Irish governing class. We do deny that it can serve the purpose of the socialist movement.
From an editorial "Do we want a Censor?" Socialist Standard, November 1928.