You know, of course, that the Tasmanians, who never committed adultery, are now extinct.

Rationalism belongs to the cool observer. But because of the stupidity of the average person, they follow not reason, but faith. This naïve faith, requires necessary illusions and emotionally potent oversimplifications, which are provided by the myth maker to keep the ordinary person on course.

Most people know no other way of judging men's worth but by the vogue they are in, or the fortunes they have met with.

In the next few years the struggle will not be between utopia and reality, but between different utopias, each trying to impose itself on reality ... we can no longer hope to save everything, but ... we can at least try to save lives, so that some kind of future, if perhaps not the ideal one, will remain possible.

I repeat Sturgeon's Revelation, which was wrung out of me after twenty years of wearying defense of science fiction against attacks of people who used the worst examples of the field for ammunition, and whose conclusion was that ninety percent of it is crud.

Go, speed the stars of Thought On to their shining goals; - The sower scatters broad his seed, The wheat thou strew'st be souls.