My own education has been entirely controversial: that is why I know what I am writing about; and appear eccentric to dogmatically educated Old School Ties whose heads are stuffed with obsolete shibboleths.
Physically there is nothing to distinguish human society from the farm-yard except that children are more troublesome and costly than chickens and calves and that men and women are not so completely enslaved as farm stock.
The censorship method ... is that of handing the job over to some frail and erring mortal man, and making him omnipotent on the assumption that his official status will make him infallible and omniscient.