Security can only be achieved through constant change, through discarding old ideas that have outlived their usefulness and adapting others to current facts.

The First Amendment makes confidence in the common sense of our people and in the maturity of their judgement the great postulate of our democracy.

The Constitution and the Bill of Rights we designed to get the government off the backs of the people -- all the people. Those great documents guarantee to us all the rights to personal and spiritual self-fulfillment. But that guarantee is not self-executing. As nightfall does not come all at once, neither does oppression. In both instances, there is a twilight when everything remains seemingly unchanged. And it is in such a twilight that we all must be most aware of the change in the air -- however slight -- lest we become unwitting victims of the darkness.

Ideas are indeed the most dangerous weapons in the world. Our ideas of freedom are the most powerful political weapons man has ever forged.

What a man thinks is no concern of the government.

Only when there is a wilderness can man harmonize his inner being with the wavelengths of the earth. When the earth, its products, its creatures, become his concern, man is caught up in a cause greater than his own life and more meaningful. Only when man loses himself in an endeavor of that magnitude does he walk and live with humanity and reverence.

The concept of the public welfare is broad and inclusive ... the values it represents are spiritual as well as physical, aesthetic as well as monetary. It is within the power of the legislature to determine that the community should be beautiful as well as healthy, spacious as well as clean, well balanced as well as carefully patroled.