A selective view of the relationship of censorship and free speech to the individual and society. The author does not take for granted that censorship is wrong, but equally what he has written is in no way an apology for censorship. He offers no solution to the problem of the proper extent of censorship in a society. Instead, he hopes to show that censorship, and more widely, other restrictions on freedom, cannot be considered in a self-contained way but have implications of which the advocate of unrestricted freedom for the individual in matters of opinion seems surprisingly unaware.