Modern science fiction is the only form of literature that consistently considers the nature of the changes that face us.

There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge."

Even as a youngster, though, I could not bring myself to believe that if knowledge presented danger, the solution was ignorance.

Night will always be a time of fear and insecurity, and the heart will sink with the sun.

Unfortunately, in many cases, people who write science fiction violate the laws of nature, not because they want to make a point, but because they don't know what the laws of nature are.

When stupidity is considered patriotism, it is unsafe to be intelligent.

The intelligent man is never bored.