“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.”

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

“(He) mourned mankind, and the blindness of men, who thought that the Kosmos had rules and limits that would shelter them from their own freedom. There were no shelters. There were no final purposes. Futility, and freedom, were Absolute”

“Science fiction is not about the freedom of imagination. It's about a free imagination pinched and howling in a vise that other people call real life.”

“Freedom means more than just struggling to survive.”

“Most—but not all—of the writers I knew then were young men who cherished their independence, were unconcerned about job security, and were serious about their writing. They didn’t want to be anyone’s employee if it interfered with their writing. They were halfway or all the way outside the mainstream and were often not interested in becoming part of the burgeoning corporate society. They had more freedom than your average American.”

“Freedom in education has many aspects. There is first of all freedom to learn or not to learn. Then there is freedom as to what to learn. And in later education there is freedom of opinion.”