What finally emerges from the 'clear and present danger' cases is a working principle that the substantive evil must be extremely serious and the degree of imminence extremely high before utterances can be punished...It must be taken as a command of the broadest scope that explicit language, read in the context of a liberty-loving society, will allow.

Freedom to speak and write about public questions is as important to the life of our government as is the heart to the human body. In fact, this privilege is the heart of our government. If that heart be weakened, the result is debilitation; if it be stilled, the result is death.

The United States has a system of taxation by confession

The very reason for the First Amendment is to make the people of this country free to think, speak, write and worship as they wish, not as the Government commands.

Paramount among the responsibilities of a free press is the duty to prevent any part of the government from deceiving the people and sending them off to distant lands to die of foreign fevers and foreign shot and shell.

The "establishment of religion" clause of the First Amendment means at least this: Neither a state nor the Federal Government can set up a church. Neither can pass laws which aid one religion, aid all religions, or prefer one religion over another. Neither can force nor influence a person to go to or to remain away from church against his will or force him to profess a belief or disbelief in any religion.

The Establishment Clause stands as an expression of principle on the part of the Founders of our Constitution that religion is too personal, too sacred, too holy, to permit its 'unhallowed perversion' by a civil magistrate.