She had always known that all lives are in common, rejoicing in her kinship to the fish in the tanks of her laboratories, seeking the experience of existences outside the human boundary.
Ursula K. Le GuinThere was a wall. It did not look important. It was built of uncut rocks roughly mortared. An adult could look right over it, and even a child could climb it. Where it crossed the roadway, instead of having a gate it degenerated into mere geometry, a line, an idea of boundary. But the idea was real. It was important. For seven generations there had been nothing in the world more important than that wall. Like all walls it was ambiguous, two-faced. What was inside it and what was outside it depended upon which side of it you were on.
Ursula K. Le GuinA dangerous book will always be in danger from those it threatens with the demand that they question their assumptions. They'd rather hang on to the assumptions and ban the book.
Ursula K. Le Guin