"It would be fascinating to read a book listing all the ideas that corrupt society, morally and intellectually, but which are
taken for granted or expounded in the works of the most celebrated and revered authors; ideas favouring religious superstition, unsound
political principles, despotism, class snobbery, in fact every sort of popular prejudice. You'd find that almost all books contain
material which corrupts - and that even the best of them do almost as much harm as good."