We can have intellectual individualism and the rich cultural diversities that we owe to exceptional minds only at the price of occasional eccentricity and abnormal attitudes. When they are so harmless to others or to the State as those we deal with here, the prices is not too great. But freedom to differ is not limited to things that do not matter much. That would be a mere shadow of freedom. The test of its substance is the right to differ as to things that touch the heart of the existing order.

Any court which undertakes by its legal processes to enforce civil liberties needs the support of an enlightened and vigorous public opinion which will be intelligent and discriminating as to what cases really are civil liberties cases and what questions really are involved in those cases.

If certain acts in violation of treaties are crimes, they are crimes whether the United States does them or whether Germany does them, and we are not prepared to lay down a rule of criminal conduct against others which we would not be willing to have invoked against us.

To believe that patriotism will not flourish if patriotic ceremonies are voluntary and spontaneous instead of a compulsory routine is to make an unflattering estimate of the appeal of our institutions to free minds.

Civil government cannot let any group ride roughshod over others simply because their consciences tell them to do so.

It is not the function of government to keep the citizen from falling into error; it is the function of the citizen to keep the government from falling into error.

The privilege of opening the first trial in history for crimes against the peace of the world imposes a grave responsibility. The wrongs, which we seek to condemn and punish, have been so calculated, so malignant, and so devastating, that civilization cannot tolerate their being ignored, because it cannot survive their being repeated. That four great nations, flushed with victory and stung with injury, stay the hand of vengeance and voluntarily submit their captive enemies to the judgment of the law is one of the most significant tributes that power has ever paid to reason.