“It is impossible to stand for intellectual freedom without grappling with censorship.”

“Censorship in the schools that denies intellectual freedom to teachers robs the student of that same freedom. And the freedom to learn is clearly no less precious than the freedom to teach.”

“True freedom is impossible without a mind made free by discipline.”

“Freedom, democracy, and socialism can only ever exist together; it is impossible to have any one without the other two.”

“Intellectual freedom depends upon material things.”

“They [intellectuals] coined most of the slogans that guided the butcheries of Bolshevism, Fascism, and Nazism. Intellectuals extolling the delights of murder, writers advocating censorship, philosophers judging the merits of thinkers and authors, not according to the value of their contributions but according to their achievements on battlefields, are the spiritual leaders of our age of perpetual strife.”