Fear of ideas makes us impotent and ineffective.

It is better, so the Fourth Amendment teaches us, that the guilty sometimes go free than the citizens be subject to easy arrest.

The challenge to our liberties comes frequently not from those who consciously seek to destroy our system of government, but from men of goodwill - good men who allow their proper concerns to blind them to the fact that what they propose to accomplish involves an impairment of liberty.

The First and Fourteenth Amendments say that Congress and the States shall make "no law" which abridges freedom of speech or of the press. In order to sanction a system of censorship I would have to say that "no law" does not mean what it says, that "no law" is qualified to mean "some" laws. I cannot take this step.

Free speech is not to be regulated like diseased cattle and impure butter. The audience (in this case, the judge or the jury) that hissed yesterday may applaud today, even for the same performance.

The liberties of none are safe unless the liberties of all are protected.

World federation is an ideal that will not die. More and more people are coming to realize that peace must be more than an interlude if we are to survive; that peace is a produce of law and order; that law is essential if the force of arms is not to rule the world.