I shall not attempt further to define the kinds of material I understand to be embraced within that shorthand description (of pornography), and perhaps I could never succeed in intelligibly doing so. But I know it when I see it, and the motion picture involved in this case is not that.

I shall not today attempt further to define the kinds of material but I know it when I see it.

Censorship reflects a society's lack of confidence in itself. It is a hallmark of an authoritarian regime.

A person's mere propinquity to others independently suspected of criminal activity does not give rise to probable cause to search that person.

I think that the Court's task, in this as in all areas of constitutional adjudication, is not responsibly aided by the uncritical invocation of metaphors like the ' wall of separation,' a phrase nowhere to be found in the Constitution.

For me this is not something that can be swept under the rug and forgotten in the interest of forced Sunday togetherness.

The 4th Amendment and the personal rights it secures have a long history. At the very core stands the right of a man to retreat into his own home and there be free from unreasonable governmental intrusion.