Lyndon Johnson actually said...

They may delay us, but I warn them and I pledge you they will never deter or or defeat us.

I have committed my administration to the task of persuading the non-nuclear countries that it is neither in the interests of their security...

I have instructed our negotiators to walk the extra mile necessary to insure that the weapons of war submit to man's need for peace.

I reaffirm my belief that it is possible through reason and through patient effort to translate the world's common interest in survival into...