I am an optimist about America. But how can I maintain that optimism after Vietnam, after the murder of so many who fought for civil rights, after the Red scare and after the abusive tactics planned by government today? I can because we have regretted our mistakes in the past, relearning every time that no ruler can be trusted with arbitrary power. And I believe we will again.… But after all, this has always been a country of unbounded optimism, a country that struggles with itself and conquers corrupting habit.… In the end I believe that faith in reason will prevail. But it will not happen automatically. Freedom under law is hard work. If rulers cannot be trusted with arbitrary power, it is up to citizens to raise their voices at injustice.

I have not asked for a single program which did not cause one or all Americans some inconvenience, or some hardship, or some sacrifice. But they have responded-and you in the Congress have responded to your duty--and I feel confident in asking today for a similar response to these new and larger demands. It is heartening to know, as I journey abroad, that our country is united in its commitment to freedom-and is ready to do its duty.