As our own species is in the process of proving, one cannot have superior science and inferior morals. The combination is unstable and self-destroying.

My objection to organized religion is the premature conclusion to ultimate truth that it represents.

I've been saying for a long time that I'm hoping to find intelligent life in Washington.

There is a special sadness in achievement, in the knowledge that a long-desired goal has been attained at last, and that life must now be shaped toward new ends.

All explorers are seeking something they have lost. It is seldom that they find it, and more seldom still that the attainment brings them greater happiness than the quest.

No communication technology has ever disappeared, but instead becomes increasingly less important as the technological horizon widens.

Science fiction does not attempt to predict. It extrapolates. It just says, "What if?" not what will be? Because you can never predict what will happen, particularly in politics and economics. You can to some extent predict in the technological sphere - flying, space travel, but even there we missed badly on some things, like computers. No one imagined the incredible impact of computers, even though robot brains of various kinds but the idea that one day every house would have a computer in every room and that one day we'd have computers built into our clothing, nobody ever thought of that.