I have always lived in a world in which I'm just a spot in history. My life is not the important point. I'm just part of the continuum, and that continuum, to me, is a marvelous thing. The history of life, and the history of the planet, should go on and on and on and on. I cannot conceive of anything in the universe that has more meaning than that.

It may be important to write a book that doesn't come up to what I would like to have rather than to write no book at all.

To the Chasmites, truth is determined by how well it fits their expectations, and doesn't that sound familiar? They have consistently refused to have a god contest, and I fear they will have to encounter the godlet rather forcibly before they believe there is anything there at all.

The Regime has become so smug it can't tell the difference among the revolutionary, the innovative, or the merely various. The high command knows so little about the outside that if I came back with a fully equipped chemical laboratory and told them I'd found it in a cave, they'd probably believe that, so long as I brought it back piecemeal in my saddle bags, thus proving I hadn't known it was there beforehand.

All around the Mediterranean you'll find cultures that believe men can't control themselves and shouldn't have to try.

[T]he scripture worshippers put the writings ahead of God. Instead of interpreting God's actions in nature, for example, they interpret nature in the light of the Scripture. Nature says the rock is billions of years old, but the book says different, so even though men wrote the book, and God made the rock and God gave us minds that have found ways to tell how old it is, we still choose to believe the Scripture.

Science fiction still is an idea genre.