While the machinery of law enforcement and indeed the nature of crime itself have changed dramatically since the Fourth Amendment became part of the Nation's fundamental law in 1791, what the Framers understood then remains true today - that the task of combating crime and convicting the guilty will in every era seem of such critical and pressing concern that we may be lured by the temptations of expediency into forsaking our commitment to protecting individual liberty and privacy.
William J. BrennanNo doubt, there are those who believe that judges - and particularly dissenting judges - write to hear themselves say, as it were, 'I, I, I.' And no doubt, there are also those who believe that judges are, like Joan Didion, primarily engaged in the writing of fiction. I cannot agree with either of those propositions.
William J. BrennanWe current Justices read the Constitution in the only way that we can: as Twentieth Century Americans. We look to the history of the time of framing and to the intervening history of interpretation. But the ultimate question must be, what do the words of the text mean in our time. For the genius of the Constitution rests not in any static meaning it might have had in a world that is dead and gone, but in the adaptability of its great principles to cope with current problems and current needs.
William J. BrennanIf the right to privacy means anything, it is the right of the individual, married or single, to be free from unwarranted governmental intrusion.
William J. BrennanThe Constitution was framed fundamentally as a bulwark against governmental power, and preventing the arbitrary administration of punishment is a basic ideal of any society that purports to be governed by the rule of law.
William J. Brennan