"As the Constitution endures, persons in every generation can invoke its principles in their own search for greater freedom."

"The case for freedom, the case for our constitutional principles the case for our heritage has to be made anew in each generation. The work of freedom is never done."

"Sometimes it is easy... to enhance your prestige by not exercising your responsibility, but that's not been the tradition of the court."

"Asking questions is an essential part of police investigation. In the ordinary sense a police officer is free to ask a person for identification without implicating the Fourth Amendment."