de bello gallico, 6.20

Which states are thought to conduct their state more properly, have it ordained by their laws, if any person has received by rumor or report from his neighbors any thing about the state, that he should convey (it) to the magistrate and not share (it) with any other: because it has been learned that more rash and inexperienced men were often alarmed by false reports and were driven to crime and formed a plan about the most important affairs. The magistrates conceal those things which seem best and they reveal to the multitude which things they judge according to use. It is not allowed to speak about the state except in (lit. through) council.