Many short-sighted fools think that going to the Moon was just a stunt. But the astronauts knew the meaning of what they were doing, as is shown by Neil Armstrong's first words in stepping down onto the soil of Luna: "One small step for a man, one giant leap for mankind."

Cheops' Law: Nothing ever gets built on schedule or within budget.

Never try to have the last word. You might get it.

But, if there ever was a time in history when "peace" meant that there was no fighting going on, I have been unable to find out about it.

When you're rich, you don't have friends; you just have endless acquaintances.

The future is better than the past. Despite the crepe hangers, romanticists, and anti-intellectuals, the world steadily grows better because the human mind, applying itself to environment, makes it better. With hands ... with tools ... with horse sense and science and engineering.

Pessimist by policy, optimist by temperament- it is possible to be both. How? By never taking an unnecessary chance and by minimizing the risks you can't avoid. This permits you to play out the game untroubled by the certainty of the outcome.