Do not explain too much It is seldom advisable to tell all. William Strunk Jr. & E.B. White, The Elements of Style secrets
To hide or dissemble Fact: The birth agonies of the New IRS led to one of the great and terrible PR discoveries in modern democracy, which is that if sensitive issues of governance can be made sufficiently dull and arcane, there will be no need for officials to hide or dissemble, because no one not directly involved will pay enough attention to cause trouble. David Foster Wallace, The Pale King secretsgovernment
Eyes on the street You can’t make people use streets they have no reason to use. You can’t make people watch streets they do not want to watch. Safety on the streets by surveillance and mutual policing of one another sounds grim, but in real life it is not grim. The safety of the street works best, most casually, and with least frequent taint of hostility or suspicion precisely where people are using and most enjoying the city streets voluntarily and are least conscious, normally, that they are policing. Jane Jacobs, The Death and Life of Great American Cities To deter crime safety