"For me, the most ironic token
of that moment in history [the
first human moon landing] is the
plaque signed by President
Richard M. Nixon that Apollo 11
took to the moon. It reads, "We
came in peace for all Mankind."
As the United States was
dropping seven and a half
megatons of conventional
explosives on small nations in
Southeast Asia, we congratulated
ourselves on our humanity. We
would harm no one on a lifeless
rock."

-- Carl Sagan,
Pale Blue Dot, pg 169