But Roy Rockwood, it was science fiction for the sake of science fiction.

I thought that automobiles were going to have mufflers and go fast and airplanes were going to fly fast.

I got done writing Ports of Call and suddenly realized I have far too much material for the book.

It is useless, after all, to complain against inexorable reality.

The inscrutability [of economics] is perhaps not unintentional. It gives endless employment to dialecticians who otherwise might become public charges or, at very worst, swindlers and tricksters.

Happiness is fugitive; dissatisfaction and boredom are real.

I give dignity second place to expedience.