Sunlight is said to be the best of disinfectants.

To declare that in the administration of criminal law the end justifies the means to declare that the Government may commit crimes in order to secure conviction of a private criminal would bring terrible retribution.

Fear of serious injury cannot alone justify suppression of free speech and assembly.

The right most valued by all civilized men is the right to be left alone.

... fear breeds repression; that repression breeds hate; that hate menaces stable government; that the path of safety lies in the opportunity to discuss freely supposed grievances and proposed remedies; and that the fitting remedy for evil counsels is good ones.

If you would venture, let your mind be bold . . . not reckless but bold.

The progress of science in furnishing the government with means of espionage is not likely to stop with wire tapping. Ways may some day be developed by which the government, without removing papers from secret drawers, can reproduce them in court, and by which it will be enabled to expose to a jury the most intimate occurrences of the home. Advances in the psychic and related sciences may bring means of exploring unexpressed beliefs, thoughts and emotions. 'That places the liberty of every man in the hands of every petty officer' was said by James Otis of much lesser intrusions than these.