Tem-se vontade de invocar regras morais, mas elas não constituem qualquer garantia numa época em que se fala de ética, de comissões de ética e de controlo e sanções, mas em que todos são desonestos. - Vittorio Andreoli
Science fiction has included a lot of speculations that look like predictions, and some of them have come to pass, most spectacularly spaceships and atomic power and bombs, but prediction is a side effect of creating plausible scenarios about future change, not its intent. SF has been more important as a means of persuading readers to think about issues and the ways in which they might develop and how that might affect the human condition. - James Gunn
