Only feeble minds are paralyzed by facts.

No trilogy should have more than four books.

It will be possible in a few more years to build radio controlled rockets which can be steered into such orbits beyond the limits of the atmosphere and left to broadcast scientific information back to the Earth. A little later, manned rockets will be able to make similar flights with sufficient excess power to break the orbit and return to Earth. (1945) [Predicting communications satellites.]

The time was fast approaching when Earth, like all mothers, must say farewell to her children.

. . . Moon-Watcher felt the first faint twinges of a new and potent emotion. It was a vague and diffuse sense of envy--of dissatisfaction with his life. He had no idea of its cause, still less of its cure; but discontent had come into his soul, and he had taken one small step toward humanity.

I have a fantasy where Ted Turner is elected President but refuses because he doesn't want to give up power.

The greatest tragedy in mankind's entire history may be the hijacking of morality by religion. However valuable-even necessary-that may have been in enforcing good behavior on primitive peoples, their association is now counterproductive. Yet at the very moment when they should be decoupled, sanctimonious nitwits are calling for a return to morals based on superstition.