I Have Learned To Use The Word

There Are Flying Grandfathers. But I Intend To Be An Orbiting Grandfather.

The Logistic Requirements For A Large, Elaborate Mission To Mars Are No Greater That Those For A Minor Military Operation Extending Over A Limited Theatre Of War.

A Good Engineer Gets Stale Very Fast If He Doesn't Keep His Hands Dirty.

Man Is Not Made For Space. But With The Help Of Biologists And Medical Doctors, He Can Be Prepared And Accommodated.

The Greatest Gain From Space Travel Consists In The Extension Of Our Knowledge. In A Hundred Years This Newly Won Knowledge Will Pay Huge And Unexpected Dividends.