The Same Forces Of Nature

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.

Man Belongs Wherever He Wants To Go - And He'll Do Plenty Well When He Gets There.

One Good Test Is Worth A Thousand Expert Opinions.

If We Continue At This Leisurly Pace, We Will Have To Pass Russian Customs When We Land On The Moon.

With Our Present Knowledge, We Can Respond To The Challenge Of Stellar Space Flight Solely With Intellectual Concepts And Purely Hypothetical Analysis. Hardware Solutions Are Still Entirely Beyond Our Reach And Far, Far Away.