
The challenge of space exploration and particularly of landing men on the moon
represents the greatest challenge which has ever faced the human race.  Even
if there were no clear scientific or other arguments for proceeding with this
task, the whole history of our civilization would still impel men toward the
goal.  In fact, the assembly of the scientific and military with these human
arguments creates such an overwhelming case that in can be ignored only by
those who are blind to the teachings of history, or who wish to suspend the
development of civilization at its moment of greatest opportunity and drama.
- Sir Bernard Lovell, 1962, in "The History of Manned Space Flight"
