Looking back, nothing seems so simple than a utopian vision realised.
The best computer is a man, and it’s the only one that can be mass-produced by unskilled labor.
We can lick gravity, but sometimes the paperwork is overwhelming.
If we were to start today on an organized and well-supported space program I believe a practical passenger rocket can be built and tested within ten years.
It takes sixty-five thousand errors before you are qualified to make a rocket.
The rocket worked perfectly, except for landing on the wrong planet.