Don't ask your readers to admire your words when you want them to believe your story.

A new space race has begun, and most Americans are not even aware of it. This race is not about political prestige or military power. This new race involves the whole human species in a contest against time. All of the people of the Earth are in a desperate race against disaster... To save the Earth we must look beyond it, to interplanetary space. To present the collapse of civilization and the end of the world as we know it, we must understand that our planet does not exist in isolation.

Don't ask your readers to admire your words when you want them to believe your story.

In science there is a dictum: don't add an experiment to an experiment. Don't make things unnecessarily complicated. In writing fiction, the more fantastic the tale, the plainer the prose should be. Don't ask your readers to admire your words when you want them to believe your story.

Feeding the starving poor only increases their number.

As long as we're tied to Middle Eastern oil we're tied to Middle Eastern politics. We're hostages to the terrorists and nutcases who want to wipe out Israel and the United States because we support Israel.

I think it's perfectly OK to exploit the moon. Largely for two reasons: there's no life there, and it is close enough and rich enough in resources to be economically useful to Earth. In the final analysis, everything we do in space, if it does not help the people of Earth, all the people, it's not going to happen.