I shall not today attempt further to define the kinds of material but I know it when I see it.
Potter StewartA person's mere propinquity to others independently suspected of criminal activity does not give rise to probable cause to search that person.
Potter StewartWe dedicated ourselves to a powerful idea - organic law rather than naked power. There seems to be universal acceptance of that idea in the nation.
Potter StewartWe are concerned here only with the imposition of capital punishment for the crime of murder, and when a life has been taken deliberately by the offender, we cannot say that the punishment is invariably disproportionate to the crime. It is an extreme sanction suitable to the most extreme of crimes.
Potter Stewart