Literature cannot develop between the categories "permitted"—"not permitted"—"this you can and that you can't." Literature that is not the air of its contemporary society, that dares not warn in time against threatening moral and social dangers, such literature does not deserve the name of literature; it is only a facade. Such literature loses the confidence of its own people, and its published works are used as waste paper instead of being read.
-Letter to the Fourth National Congress of Soviet Writers

Aleksandr Solzhenitsyn