John F Kennedy, given in Dallas on the day of
his death.

We in this country, in this generation, are--by
destiny rather than choice--the watchmen on the
walls of world freedom. We ask, therefore, that
we may be worthy of our power and responsibility,
that we may exercise our strength with wisdom
and restraint, and that we may achieve in our time
and for all time the ancient vision of "peace on
earth, good will toward men." That must always be
our goal, and the righteousness of our cause must
always underlie our strength. For as was written
long ago: 'except the Lord keep the city, the
watchman waketh but in vain.'