Potter Stewart,
Quantity of Copies of Books v. Kansas…
“ The operation of the Kansas statute resembles the operation of a penal, rather than a licensing, law in this regard, since books are not, as a matter of course, subjected to prepublication state sanctioning, but are reviewed only when the State has reason to believe they are obscene.There are built-in elements in any system of licensing or censorship the tendency of which is to encourage restrictions of expression. The State is not compelled to make an initial decision to pursue a course of action, since the original burden is on the citizen to bring a piece of writing before it. ”
