One Good Test Is Worth

The First Men Who Set Out For Mars Had Better Make Sure They Leave Everything At Home In Apple-pie Order. They Won't Get Back To Earth For More Than Two And A Half Years. The Difficulties Of A Trip To Mars Are Formidable. . . . What Curious Information Will These First Explorers Carry Back From Mars? Nobody Knows-and Its Extremely Doubtful That Anyone Now Living Will Ever Know. All That Can Be Said With Certainty Today Is This: The Trip Will Be Made, And Will Be Made . . . Someday.

The Same Forces Of Nature Which Enable Us To Fly To The Stars, Enable Us Also To Destroy Our Star.

Crash Programs Fail Because They Are Based On Theory That, With Nine Women Pregnant, You Can Get A Baby In A Month.

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

It Takes Sixty-five Thousand Errors Before You Are Qualified To Make A Rocket.